123272507 has 2 divisors, whose sum is σ = 123272508. Its totient is φ = 123272506.

The previous prime is 123272503. The next prime is 123272537. The reversal of 123272507 is 705272321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123272507 - 2² = 123272503 is a prime.

It is a super-2 number, since 2×123272507² = 30392221964130098, which contains 22 as substring.

It is a Chen prime.

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 123272507.

It is not a weakly prime, because it can be changed into another prime (123272503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61636253 + 61636254.

It is an arithmetic number, because the mean of its divisors is an integer number (61636254).

Almost surely, 2^123272507 is an apocalyptic number.

123272507 is a deficient number, since it is larger than the sum of its proper divisors (1).

123272507 is an equidigital number, since it uses as much as digits as its factorization.

123272507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 123272507 is about 11102.8152736142. The cubic root of 123272507 is about 497.6859831733.

The spelling of 123272507 in words is "one hundred twenty-three million, two hundred seventy-two thousand, five hundred seven".