71130465 has 96 divisors (see below), whose sum is σ = 153653760. Its totient is φ = 29693952.

The previous prime is 71130439. The next prime is 71130469. The reversal of 71130465 is 56403117.

71130465 is a `hidden beast` number, since 71 + 130 + 465 = 666.

It is not a de Polignac number, because 71130465 - 2⁶ = 71130401 is a prime.

It is a super-2 number, since 2×71130465² = 10119086102232450, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (71130469) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 197956 + ... + 198314.

It is an arithmetic number, because the mean of its divisors is an integer number (1600560).

Almost surely, 2^71130465 is an apocalyptic number.

It is an amenable number.

71130465 is an abundant number, since it is smaller than the sum of its proper divisors (82523295).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71130465 is a wasteful number, since it uses less digits than its factorization.

71130465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431 (or 428 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 71130465 is about 8433.8878934925. The cubic root of 71130465 is about 414.3352496966.

The spelling of 71130465 in words is "seventy-one million, one hundred thirty thousand, four hundred sixty-five".