1554691113 has 12 divisors (see below), whose sum is σ = 2251004548. Its totient is φ = 1033996320.

The previous prime is 1554691091. The next prime is 1554691129. The reversal of 1554691113 is 3111964551.

1554691113 is a `hidden beast` number, since 1 + 554 + 6 + 91 + 1 + 13 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 211615209 + 1343075904 = 14547^2 + 36648^2 .

It is not a de Polignac number, because 1554691113 - 2¹⁴ = 1554674729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1554691133) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 201370 + ... + 208947.

Almost surely, 2^1554691113 is an apocalyptic number.

It is an amenable number.

1554691113 is a deficient number, since it is larger than the sum of its proper divisors (696313435).

1554691113 is a wasteful number, since it uses less digits than its factorization.

1554691113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410744 (or 410741 counting only the distinct ones).

The product of its digits is 16200, while the sum is 36.

The square root of 1554691113 is about 39429.5715548622. The cubic root of 1554691113 is about 1158.4608781430.

The spelling of 1554691113 in words is "one billion, five hundred fifty-four million, six hundred ninety-one thousand, one hundred thirteen".