71757151 has 4 divisors (see below), whose sum is σ = 71878752. Its totient is φ = 71635552.

The previous prime is 71757143. The next prime is 71757173. The reversal of 71757151 is 15175717.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 71757151 - 2³ = 71757143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71757551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59911 + ... + 61096.

It is an arithmetic number, because the mean of its divisors is an integer number (17969688).

Almost surely, 2^71757151 is an apocalyptic number.

71757151 is a deficient number, since it is larger than the sum of its proper divisors (121601).

71757151 is a wasteful number, since it uses less digits than its factorization.

71757151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121600.

The product of its digits is 8575, while the sum is 34.

The square root of 71757151 is about 8470.9592727152. The cubic root of 71757151 is about 415.5485097221.

The spelling of 71757151 in words is "seventy-one million, seven hundred fifty-seven thousand, one hundred fifty-one".