128316452 has 12 divisors (see below), whose sum is σ = 244967856. Its totient is φ = 58325640.

The previous prime is 128316451. The next prime is 128316469. The reversal of 128316452 is 254613821.

It is a super-2 number, since 2×128316452² = 32930223707736608, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (128316451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1458098 + ... + 1458185.

It is an arithmetic number, because the mean of its divisors is an integer number (20413988).

Almost surely, 2^128316452 is an apocalyptic number.

It is an amenable number.

128316452 is a deficient number, since it is larger than the sum of its proper divisors (116651404).

128316452 is a wasteful number, since it uses less digits than its factorization.

128316452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2916298 (or 2916296 counting only the distinct ones).

The product of its digits is 11520, while the sum is 32.

The square root of 128316452 is about 11327.6852004282. The cubic root of 128316452 is about 504.3833953920.

The spelling of 128316452 in words is "one hundred twenty-eight million, three hundred sixteen thousand, four hundred fifty-two".