71974130 has 16 divisors (see below), whose sum is σ = 135186624. Its totient is φ = 27537840.

The previous prime is 71974129. The next prime is 71974181. The reversal of 71974130 is 3147917.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 156236 + ... + 156695.

It is an arithmetic number, because the mean of its divisors is an integer number (8449164).

Almost surely, 2^71974130 is an apocalyptic number.

71974130 is a deficient number, since it is larger than the sum of its proper divisors (63212494).

71974130 is a wasteful number, since it uses less digits than its factorization.

71974130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312961.

The product of its (nonzero) digits is 5292, while the sum is 32.

The square root of 71974130 is about 8483.7568329131. The cubic root of 71974130 is about 415.9669329301.

The spelling of 71974130 in words is "seventy-one million, nine hundred seventy-four thousand, one hundred thirty".