123142464 has 56 divisors (see below), whose sum is σ = 362021120. Its totient is φ = 41046912.

The previous prime is 123142433. The next prime is 123142501. The reversal of 123142464 is 464241321.

It is a happy number.

123142464 is a `hidden beast` number, since 1 + 231 + 424 + 6 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33904 + ... + 37359.

Almost surely, 2^123142464 is an apocalyptic number.

It is an amenable number.

123142464 is an abundant number, since it is smaller than the sum of its proper divisors (238878656).

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

123142464 is an equidigital number, since it uses as much as digits as its factorization.

123142464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71284 (or 71268 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

The square root of 123142464 is about 11096.9574208429. The cubic root of 123142464 is about 497.5109148048.

Adding to 123142464 its reverse (464241321), we get a palindrome (587383785).

The spelling of 123142464 in words is "one hundred twenty-three million, one hundred forty-two thousand, four hundred sixty-four".