71140090 has 32 divisors (see below), whose sum is σ = 146810880. Its totient is φ = 24313344.

The previous prime is 71140079. The next prime is 71140129. The reversal of 71140090 is 9004117.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23271 + ... + 26149.

It is an arithmetic number, because the mean of its divisors is an integer number (4587840).

Almost surely, 2^71140090 is an apocalyptic number.

71140090 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

71140090 is an abundant number, since it is smaller than the sum of its proper divisors (75670790).

71140090 is a wasteful number, since it uses less digits than its factorization.

71140090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3246.

The product of its (nonzero) digits is 252, while the sum is 22.

The square root of 71140090 is about 8434.4584888421. The cubic root of 71140090 is about 414.3539374085.

The spelling of 71140090 in words is "seventy-one million, one hundred forty thousand, ninety".