20177130 has 32 divisors (see below), whose sum is σ = 51274944. Its totient is φ = 5063936.

The previous prime is 20177123. The next prime is 20177149. The reversal of 20177130 is 3177102.

It is a super-3 number, since 3×20177130³ (a number of 23 digits) contains 333 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20177097 and 20177106.

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 15 ways as a sum of consecutive naturals, for example, 19272 + ... + 20291.

It is an arithmetic number, because the mean of its divisors is an integer number (1602342).

Almost surely, 2^20177130 is an apocalyptic number.

20177130 is an abundant number, since it is smaller than the sum of its proper divisors (31097814).

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

20177130 is a wasteful number, since it uses less digits than its factorization.

20177130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39590.

The product of its (nonzero) digits is 294, while the sum is 21.

The square root of 20177130 is about 4491.8960361967. The cubic root of 20177130 is about 272.2407488587.

The spelling of 20177130 in words is "twenty million, one hundred seventy-seven thousand, one hundred thirty".