1372863253 has 4 divisors (see below), whose sum is σ = 1379832300. Its totient is φ = 1365894208.

The previous prime is 1372863223. The next prime is 1372863263. The reversal of 1372863253 is 3523682731.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1291899249 + 80964004 = 35943^2 + 8998^2 .

It is a cyclic number.

It is not a de Polignac number, because 1372863253 - 2¹³ = 1372855061 is a prime.

It is a super-2 number, since 2×1372863253² = 3769507022875484018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1372863223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3484228 + ... + 3484621.

It is an arithmetic number, because the mean of its divisors is an integer number (344958075).

Almost surely, 2^1372863253 is an apocalyptic number.

It is an amenable number.

1372863253 is a deficient number, since it is larger than the sum of its proper divisors (6969047).

1372863253 is an equidigital number, since it uses as much as digits as its factorization.

1372863253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6969046.

The product of its digits is 181440, while the sum is 40.

The square root of 1372863253 is about 37052.1693426984. The cubic root of 1372863253 is about 1111.4137366193.

The spelling of 1372863253 in words is "one billion, three hundred seventy-two million, eight hundred sixty-three thousand, two hundred fifty-three".