1372949545 has 16 divisors (see below), whose sum is σ = 1855296000. Its totient is φ = 966297600.

The previous prime is 1372949527. The next prime is 1372949549. The reversal of 1372949545 is 5459492731.

It is not a de Polignac number, because 1372949545 - 2¹⁵ = 1372916777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1372949549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 400920 + ... + 404329.

It is an arithmetic number, because the mean of its divisors is an integer number (115956000).

Almost surely, 2^1372949545 is an apocalyptic number.

It is an amenable number.

1372949545 is a deficient number, since it is larger than the sum of its proper divisors (482346455).

1372949545 is a wasteful number, since it uses less digits than its factorization.

1372949545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 805296.

The product of its digits is 1360800, while the sum is 49.

The square root of 1372949545 is about 37053.3337906321. Note that the first 3 decimals coincide. The cubic root of 1372949545 is about 1111.4370222851.

The spelling of 1372949545 in words is "one billion, three hundred seventy-two million, nine hundred forty-nine thousand, five hundred forty-five".