71959542 has 16 divisors (see below), whose sum is σ = 144431040. Its totient is φ = 23901192.

The previous prime is 71959519. The next prime is 71959543. The reversal of 71959542 is 24595917.

It is a junction number, because it is equal to n+sod(n) for n = 71959494 and 71959503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71959543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19492 + ... + 22887.

It is an arithmetic number, because the mean of its divisors is an integer number (9026940).

Almost surely, 2^71959542 is an apocalyptic number.

71959542 is an abundant number, since it is smaller than the sum of its proper divisors (72471498).

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

71959542 is a wasteful number, since it uses less digits than its factorization.

71959542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42667.

The product of its digits is 113400, while the sum is 42.

The square root of 71959542 is about 8482.8970287279. The cubic root of 71959542 is about 415.9388277593.

The spelling of 71959542 in words is "seventy-one million, nine hundred fifty-nine thousand, five hundred forty-two".