78130582 has 12 divisors (see below), whose sum is σ = 121379076. Its totient is φ = 37717400.

The previous prime is 78130567. The next prime is 78130583. The reversal of 78130582 is 28503187.

It is a super-2 number, since 2×78130582² = 12208775687317448, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78130583) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21544 + ... + 24907.

It is an arithmetic number, because the mean of its divisors is an integer number (10114923).

Almost surely, 2^78130582 is an apocalyptic number.

78130582 is a deficient number, since it is larger than the sum of its proper divisors (43248494).

78130582 is a wasteful number, since it uses less digits than its factorization.

78130582 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46511 (or 46482 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 78130582 is about 8839.1505247959. The cubic root of 78130582 is about 427.5041678515.

The spelling of 78130582 in words is "seventy-eight million, one hundred thirty thousand, five hundred eighty-two".