71572954 has 4 divisors (see below), whose sum is σ = 107359434. Its totient is φ = 35786476.

The previous prime is 71572939. The next prime is 71572967. The reversal of 71572954 is 45927517.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45927517 = 1667 ⋅27551.

It can be written as a sum of positive squares in only one way, i.e., 56927025 + 14645929 = 7545^2 + 3827^2 .

It is a super-2 number, since 2×71572954² = 10245375488572232, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17893237 + ... + 17893240.

Almost surely, 2^71572954 is an apocalyptic number.

71572954 is a deficient number, since it is larger than the sum of its proper divisors (35786480).

71572954 is a wasteful number, since it uses less digits than its factorization.

71572954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35786479.

The product of its digits is 88200, while the sum is 40.

The square root of 71572954 is about 8460.0800232622. The cubic root of 71572954 is about 415.1926410030.

The spelling of 71572954 in words is "seventy-one million, five hundred seventy-two thousand, nine hundred fifty-four".