172159140 has 48 divisors (see below), whose sum is σ = 503008128. Its totient is φ = 43912704.

The previous prime is 172159129. The next prime is 172159199. The reversal of 172159140 is 41951271.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 172159098 and 172159107.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60997 + ... + 63756.

It is an arithmetic number, because the mean of its divisors is an integer number (10479336).

Almost surely, 2^172159140 is an apocalyptic number.

172159140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

172159140 is an abundant number, since it is smaller than the sum of its proper divisors (330848988).

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

172159140 is a wasteful number, since it uses less digits than its factorization.

172159140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124788 (or 124786 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 30.

The square root of 172159140 is about 13120.9428014911. The cubic root of 172159140 is about 556.3012402404.

The spelling of 172159140 in words is "one hundred seventy-two million, one hundred fifty-nine thousand, one hundred forty".