123272530 has 32 divisors (see below), whose sum is σ = 229112640. Its totient is φ = 47718720.

The previous prime is 123272507. The next prime is 123272537. The reversal of 123272530 is 35272321.

It is a super-2 number, since 2×123272530² = 30392233305201800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123272495 and 123272504.

It is not an unprimeable number, because it can be changed into a prime (123272537) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77281 + ... + 78859.

It is an arithmetic number, because the mean of its divisors is an integer number (7159770).

Almost surely, 2^123272530 is an apocalyptic number.

123272530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123272530 is a deficient number, since it is larger than the sum of its proper divisors (105840110).

123272530 is a wasteful number, since it uses less digits than its factorization.

123272530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1834.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 123272530 is about 11102.8163093875. The cubic root of 123272530 is about 497.6860141258.

The spelling of 123272530 in words is "one hundred twenty-three million, two hundred seventy-two thousand, five hundred thirty".