151820955 has 48 divisors (see below), whose sum is σ = 309175776. Its totient is φ = 67944960.

The previous prime is 151820939. The next prime is 151820959. The reversal of 151820955 is 559028151.

It is a happy number.

It is not a de Polignac number, because 151820955 - 2⁴ = 151820939 is a prime.

It is a super-3 number, since 3×151820955³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (151820959) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 5362 + ... + 18231.

It is an arithmetic number, because the mean of its divisors is an integer number (6441162).

Almost surely, 2^151820955 is an apocalyptic number.

151820955 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

151820955 is an abundant number, since it is smaller than the sum of its proper divisors (157354821).

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

151820955 is a wasteful number, since it uses less digits than its factorization.

151820955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23628 (or 23625 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 36.

The square root of 151820955 is about 12321.5646327891. The cubic root of 151820955 is about 533.4707018117.

The spelling of 151820955 in words is "one hundred fifty-one million, eight hundred twenty thousand, nine hundred fifty-five".