1325177421 has 12 divisors (see below), whose sum is σ = 1876953792. Its totient is φ = 831483328.

The previous prime is 1325177411. The next prime is 1325177423. The reversal of 1325177421 is 1247715231.

It is not a de Polignac number, because 1325177421 - 2¹⁴ = 1325161037 is a prime.

It is a super-2 number, since 2×1325177421² = 3512190394256422482, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1325177423) 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, 763365 + ... + 765098.

It is an arithmetic number, because the mean of its divisors is an integer number (156412816).

Almost surely, 2^1325177421 is an apocalyptic number.

It is an amenable number.

1325177421 is a deficient number, since it is larger than the sum of its proper divisors (551776371).

1325177421 is a wasteful number, since it uses less digits than its factorization.

1325177421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1528500 (or 1528483 counting only the distinct ones).

The product of its digits is 11760, while the sum is 33.

The square root of 1325177421 is about 36402.9864296873. The cubic root of 1325177421 is about 1098.3936390744.

The spelling of 1325177421 in words is "one billion, three hundred twenty-five million, one hundred seventy-seven thousand, four hundred twenty-one".