71552156 has 12 divisors (see below), whose sum is σ = 134848392. Its totient is φ = 33024048.

The previous prime is 71552111. The next prime is 71552161. The reversal of 71552156 is 65125517.

It is a super-2 number, since 2×71552156² = 10239422056496672, which contains 22 as substring.

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, 687950 + ... + 688053.

It is an arithmetic number, because the mean of its divisors is an integer number (11237366).

Almost surely, 2^71552156 is an apocalyptic number.

It is an amenable number.

71552156 is a deficient number, since it is larger than the sum of its proper divisors (63296236).

71552156 is a wasteful number, since it uses less digits than its factorization.

71552156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1376020 (or 1376018 counting only the distinct ones).

The product of its digits is 10500, while the sum is 32.

The square root of 71552156 is about 8458.8507493631. The cubic root of 71552156 is about 415.1524209076.

The spelling of 71552156 in words is "seventy-one million, five hundred fifty-two thousand, one hundred fifty-six".