71479157 has 2 divisors, whose sum is σ = 71479158. Its totient is φ = 71479156.

The previous prime is 71479141. The next prime is 71479181. The reversal of 71479157 is 75197417.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40018276 + 31460881 = 6326^2 + 5609^2 .

It is a cyclic number.

It is not a de Polignac number, because 71479157 - 2⁴ = 71479141 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71479357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35739578 + 35739579.

It is an arithmetic number, because the mean of its divisors is an integer number (35739579).

Almost surely, 2^71479157 is an apocalyptic number.

It is an amenable number.

71479157 is a deficient number, since it is larger than the sum of its proper divisors (1).

71479157 is an equidigital number, since it uses as much as digits as its factorization.

71479157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 61740, while the sum is 41.

The square root of 71479157 is about 8454.5347003842. The cubic root of 71479157 is about 415.0111904855.

The spelling of 71479157 in words is "seventy-one million, four hundred seventy-nine thousand, one hundred fifty-seven".