75407136 has 48 divisors (see below), whose sum is σ = 226223424. Its totient is φ = 21544704.

The previous prime is 75407117. The next prime is 75407161. The reversal of 75407136 is 63170457.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 75407097 and 75407106.

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, 55435 + ... + 56778.

It is an arithmetic number, because the mean of its divisors is an integer number (4712988).

Almost surely, 2^75407136 is an apocalyptic number.

It is an amenable number.

75407136 is an abundant number, since it is smaller than the sum of its proper divisors (150816288).

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

75407136 is a wasteful number, since it uses less digits than its factorization.

75407136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112233 (or 112225 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 33.

The square root of 75407136 is about 8683.7282315835. The cubic root of 75407136 is about 422.4780488811.

The spelling of 75407136 in words is "seventy-five million, four hundred seven thousand, one hundred thirty-six".