10155620 has 12 divisors (see below), whose sum is σ = 21326844. Its totient is φ = 4062240.

The previous prime is 10155617. The next prime is 10155637. The reversal of 10155620 is 2655101.

It can be written as a sum of positive squares in 2 ways, for example, as 2876416 + 7279204 = 1696^2 + 2698^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 507781 = 10155620 / (1 + 0 + 1 + 5 + 5 + 6 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 10155592 and 10155601.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 253871 + ... + 253910.

It is an arithmetic number, because the mean of its divisors is an integer number (1777237).

Almost surely, 2^10155620 is an apocalyptic number.

10155620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10155620 is an abundant number, since it is smaller than the sum of its proper divisors (11171224).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10155620 is a wasteful number, since it uses less digits than its factorization.

10155620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507790 (or 507788 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 10155620 is about 3186.7883519305. The cubic root of 10155620 is about 216.5552984528. Note that the first 3 decimals are identical.

It can be divided in two parts, 101556 and 20, that multiplied together give a triangular number (2031120 = T₂₀₁₅).

The spelling of 10155620 in words is "ten million, one hundred fifty-five thousand, six hundred twenty".