123252215 has 4 divisors (see below), whose sum is σ = 147902664. Its totient is φ = 98601768.

The previous prime is 123252203. The next prime is 123252229. The reversal of 123252215 is 512252321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 123252215 - 2¹⁴ = 123235831 is a prime.

It is a super-2 number, since 2×123252215² = 30382217004812450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12325217 + ... + 12325226.

It is an arithmetic number, because the mean of its divisors is an integer number (36975666).

Almost surely, 2^123252215 is an apocalyptic number.

123252215 is a deficient number, since it is larger than the sum of its proper divisors (24650449).

123252215 is an equidigital number, since it uses as much as digits as its factorization.

123252215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24650448.

The product of its digits is 1200, while the sum is 23.

The square root of 123252215 is about 11101.9014137219. The cubic root of 123252215 is about 497.6586734933.

The spelling of 123252215 in words is "one hundred twenty-three million, two hundred fifty-two thousand, two hundred fifteen".