71508023 has 2 divisors, whose sum is σ = 71508024. Its totient is φ = 71508022.

The previous prime is 71508007. The next prime is 71508061. The reversal of 71508023 is 32080517.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 71508023 - 2⁴ = 71508007 is a prime.

It is a super-2 number, since 2×71508023² = 10226794706737058, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 71507983 and 71508001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71508323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35754011 + 35754012.

It is an arithmetic number, because the mean of its divisors is an integer number (35754012).

Almost surely, 2^71508023 is an apocalyptic number.

71508023 is a deficient number, since it is larger than the sum of its proper divisors (1).

71508023 is an equidigital number, since it uses as much as digits as its factorization.

71508023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 71508023 is about 8456.2416592716. The cubic root of 71508023 is about 415.0670487304.

The spelling of 71508023 in words is "seventy-one million, five hundred eight thousand, twenty-three".