71542136 has 16 divisors (see below), whose sum is σ = 134289600. Its totient is φ = 35731584.

The previous prime is 71542111. The next prime is 71542147. The reversal of 71542136 is 63124517.

It is a junction number, because it is equal to n+sod(n) for n = 71542099 and 71542108.

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, 3641 + ... + 12503.

It is an arithmetic number, because the mean of its divisors is an integer number (8393100).

Almost surely, 2^71542136 is an apocalyptic number.

It is an amenable number.

71542136 is a deficient number, since it is larger than the sum of its proper divisors (62747464).

71542136 is a wasteful number, since it uses less digits than its factorization.

71542136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9878 (or 9874 counting only the distinct ones).

The product of its digits is 5040, while the sum is 29.

The square root of 71542136 is about 8458.2584495864. The cubic root of 71542136 is about 415.1330410050.

The spelling of 71542136 in words is "seventy-one million, five hundred forty-two thousand, one hundred thirty-six".