1372765133 has 4 divisors (see below), whose sum is σ = 1374887520. Its totient is φ = 1370642748.

The previous prime is 1372765127. The next prime is 1372765171. The reversal of 1372765133 is 3315672731.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3315672731 = 7 ⋅473667533.

It is a cyclic number.

It is not a de Polignac number, because 1372765133 - 2⁴ = 1372765117 is a prime.

It is a super-2 number, since 2×1372765133² = 3768968220761015378, 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 (1372765123) 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, 1060223 + ... + 1061516.

It is an arithmetic number, because the mean of its divisors is an integer number (343721880).

Almost surely, 2^1372765133 is an apocalyptic number.

It is an amenable number.

1372765133 is a deficient number, since it is larger than the sum of its proper divisors (2122387).

1372765133 is an equidigital number, since it uses as much as digits as its factorization.

1372765133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2122386.

The product of its digits is 79380, while the sum is 38.

The square root of 1372765133 is about 37050.8452400212. The cubic root of 1372765133 is about 1111.3872580137.

The spelling of 1372765133 in words is "one billion, three hundred seventy-two million, seven hundred sixty-five thousand, one hundred thirty-three".