71272157 has 8 divisors (see below), whose sum is σ = 78466080. Its totient is φ = 64197360.

The previous prime is 71272133. The next prime is 71272171. The reversal of 71272157 is 75127217.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 71272157 - 2⁸ = 71271901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71272127) 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, 28523 + ... + 30920.

It is an arithmetic number, because the mean of its divisors is an integer number (9808260).

Almost surely, 2^71272157 is an apocalyptic number.

It is an amenable number.

71272157 is a deficient number, since it is larger than the sum of its proper divisors (7193923).

71272157 is a wasteful number, since it uses less digits than its factorization.

71272157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59563.

The product of its digits is 6860, while the sum is 32.

The square root of 71272157 is about 8442.2838734551. The cubic root of 71272157 is about 414.6101860461.

The spelling of 71272157 in words is "seventy-one million, two hundred seventy-two thousand, one hundred fifty-seven".