1373550013 has 6 divisors (see below), whose sum is σ = 1509769982. Its totient is φ = 1248681720.

The previous prime is 1373549971. The next prime is 1373550023. The reversal of 1373550013 is 3100553731.

It can be written as a sum of positive squares in only one way, i.e., 754436089 + 619113924 = 27467^2 + 24882^2 .

It is not a de Polignac number, because 1373550013 - 2²⁵ = 1339995581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1373550023) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5675706 + ... + 5675947.

Almost surely, 2^1373550013 is an apocalyptic number.

It is an amenable number.

1373550013 is a deficient number, since it is larger than the sum of its proper divisors (136219969).

1373550013 is a wasteful number, since it uses less digits than its factorization.

1373550013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11351675 (or 11351664 counting only the distinct ones).

The product of its (nonzero) digits is 4725, while the sum is 28.

The square root of 1373550013 is about 37061.4356575673. The cubic root of 1373550013 is about 1111.5990299611.

The spelling of 1373550013 in words is "one billion, three hundred seventy-three million, five hundred fifty thousand, thirteen".