1373517242 has 24 divisors (see below), whose sum is σ = 2097888636. Its totient is φ = 674429184.

The previous prime is 1373517221. The next prime is 1373517247. The reversal of 1373517242 is 2427153731.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 8288641 + 1365228601 = 2879^2 + 36949^2 .

It is a super-2 number, since 2×1373517242² = 3773099228142573128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1373517247) 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, 4388078 + ... + 4388390.

Almost surely, 2^1373517242 is an apocalyptic number.

1373517242 is a deficient number, since it is larger than the sum of its proper divisors (724371394).

1373517242 is an equidigital number, since it uses as much as digits as its factorization.

1373517242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770 (or 681 counting only the distinct ones).

The product of its digits is 35280, while the sum is 35.

The square root of 1373517242 is about 37060.9935376806. The cubic root of 1373517242 is about 1111.5901894866.

The spelling of 1373517242 in words is "one billion, three hundred seventy-three million, five hundred seventeen thousand, two hundred forty-two".