1381372233 has 16 divisors (see below), whose sum is σ = 1861767936. Its totient is φ = 910993280.

The previous prime is 1381372199. The next prime is 1381372241. The reversal of 1381372233 is 3322731831.

It is a cyclic number.

It is not a de Polignac number, because 1381372233 - 2⁹ = 1381371721 is a prime.

It is a super-2 number, since 2×1381372233² = 3816378492206812578, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1381372194 and 1381372203.

It is not an unprimeable number, because it can be changed into a prime (1381376233) 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, 114688 + ... + 126158.

It is an arithmetic number, because the mean of its divisors is an integer number (116360496).

Almost surely, 2^1381372233 is an apocalyptic number.

It is an amenable number.

1381372233 is a deficient number, since it is larger than the sum of its proper divisors (480395703).

1381372233 is a wasteful number, since it uses less digits than its factorization.

1381372233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11904.

The product of its digits is 18144, while the sum is 33.

The square root of 1381372233 is about 37166.8162881891. The cubic root of 1381372233 is about 1113.7051826512.

The spelling of 1381372233 in words is "one billion, three hundred eighty-one million, three hundred seventy-two thousand, two hundred thirty-three".