71610157 has 4 divisors (see below), whose sum is σ = 72784156. Its totient is φ = 70436160.

The previous prime is 71610151. The next prime is 71610169. The reversal of 71610157 is 75101617.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75101617 = 659 ⋅113963.

It can be written as a sum of positive squares in 2 ways, for example, as 31427236 + 40182921 = 5606^2 + 6339^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71610157 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 (71610151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 586908 + ... + 587029.

It is an arithmetic number, because the mean of its divisors is an integer number (18196039).

Almost surely, 2^71610157 is an apocalyptic number.

It is an amenable number.

71610157 is a deficient number, since it is larger than the sum of its proper divisors (1173999).

71610157 is a wasteful number, since it uses less digits than its factorization.

71610157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1173998.

The product of its (nonzero) digits is 1470, while the sum is 28.

The square root of 71610157 is about 8462.2784756825. The cubic root of 71610157 is about 415.2645663855.

The spelling of 71610157 in words is "seventy-one million, six hundred ten thousand, one hundred fifty-seven".