71490519 has 10 divisors (see below), whose sum is σ = 106794600. Its totient is φ = 47660292.

The previous prime is 71490479. The next prime is 71490547. The reversal of 71490519 is 91509417.

It is not a de Polignac number, because 71490519 - 2¹² = 71486423 is a prime.

It is a super-2 number, since 2×71490519² = 10221788613778722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71490589) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 441219 + ... + 441380.

It is an arithmetic number, because the mean of its divisors is an integer number (10679460).

Almost surely, 2^71490519 is an apocalyptic number.

71490519 is a deficient number, since it is larger than the sum of its proper divisors (35304081).

71490519 is an equidigital number, since it uses as much as digits as its factorization.

71490519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 882611 (or 882602 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 36.

The square root of 71490519 is about 8455.2066207752. The cubic root of 71490519 is about 415.0331787476.

The spelling of 71490519 in words is "seventy-one million, four hundred ninety thousand, five hundred nineteen".