123272529 has 8 divisors (see below), whose sum is σ = 168185952. Its totient is φ = 80270400.

The previous prime is 123272507. The next prime is 123272537. The reversal of 123272529 is 925272321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 123272529 - 2⁸ = 123272273 is a prime.

It is a super-2 number, since 2×123272529² = 30392232812111682, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 123272529.

It is not an unprimeable number, because it can be changed into a prime (123272549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 477672 + ... + 477929.

It is an arithmetic number, because the mean of its divisors is an integer number (21023244).

Almost surely, 2^123272529 is an apocalyptic number.

It is an amenable number.

123272529 is a deficient number, since it is larger than the sum of its proper divisors (44913423).

123272529 is an equidigital number, since it uses as much as digits as its factorization.

123272529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 955647.

The product of its digits is 15120, while the sum is 33.

The square root of 123272529 is about 11102.8162643538. The cubic root of 123272529 is about 497.6860127801.

The spelling of 123272529 in words is "one hundred twenty-three million, two hundred seventy-two thousand, five hundred twenty-nine".