78751136 has 12 divisors (see below), whose sum is σ = 155041362. Its totient is φ = 39375552.

The previous prime is 78751121. The next prime is 78751151. The reversal of 78751136 is 63115787.

It is an interprime number because it is at equal distance from previous prime (78751121) and next prime (78751151).

It can be written as a sum of positive squares in only one way, i.e., 68227600 + 10523536 = 8260^2 + 3244^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 78751136.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1230455 + ... + 1230518.

Almost surely, 2^78751136 is an apocalyptic number.

It is an amenable number.

78751136 is a deficient number, since it is larger than the sum of its proper divisors (76290226).

78751136 is a wasteful number, since it uses less digits than its factorization.

78751136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2460983 (or 2460975 counting only the distinct ones).

The product of its digits is 35280, while the sum is 38.

The square root of 78751136 is about 8874.1836807675. The cubic root of 78751136 is about 428.6330051629.

It can be divided in two parts, 78751 and 136, that added together give a palindrome (78887).

The spelling of 78751136 in words is "seventy-eight million, seven hundred fifty-one thousand, one hundred thirty-six".