1545338979 has 40 divisors (see below), whose sum is σ = 2398500720. Its totient is φ = 990360000.

The previous prime is 1545338969. The next prime is 1545339001. The reversal of 1545338979 is 9798335451.

1545338979 is a `hidden beast` number, since 1 + 545 + 3 + 3 + 8 + 97 + 9 = 666.

It is not a de Polignac number, because 1545338979 - 2²⁷ = 1411121251 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1545338939) by changing a digit.

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 in 39 ways as a sum of consecutive naturals, for example, 588289 + ... + 590909.

It is an arithmetic number, because the mean of its divisors is an integer number (59962518).

Almost surely, 2^1545338979 is an apocalyptic number.

1545338979 is a deficient number, since it is larger than the sum of its proper divisors (853161741).

1545338979 is a wasteful number, since it uses less digits than its factorization.

1545338979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2913 (or 2904 counting only the distinct ones).

The product of its digits is 4082400, while the sum is 54.

The square root of 1545338979 is about 39310.7997756342. The cubic root of 1545338979 is about 1156.1333250899.

The spelling of 1545338979 in words is "one billion, five hundred forty-five million, three hundred thirty-eight thousand, nine hundred seventy-nine".