1413136978 has 12 divisors (see below), whose sum is σ = 2329924590. Its totient is φ = 642334880.

The previous prime is 1413136957. The next prime is 1413136979. The reversal of 1413136978 is 8796313141.

It can be written as a sum of positive squares in only one way, i.e., 1296216009 + 116920969 = 36003^2 + 10813^2 .

It is a super-2 number, since 2×1413136978² = 3993912237181944968, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1413136979) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 2919463 + ... + 2919946.

Almost surely, 2^1413136978 is an apocalyptic number.

1413136978 is a deficient number, since it is larger than the sum of its proper divisors (916787612).

1413136978 is a wasteful number, since it uses less digits than its factorization.

1413136978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5839433 (or 5839422 counting only the distinct ones).

The product of its digits is 108864, while the sum is 43.

The square root of 1413136978 is about 37591.7142200246. The cubic root of 1413136978 is about 1122.1771474749.

The spelling of 1413136978 in words is "one billion, four hundred thirteen million, one hundred thirty-six thousand, nine hundred seventy-eight".