1325829831 has 16 divisors (see below), whose sum is σ = 1790995968. Its totient is φ = 872337600.

The previous prime is 1325829829. The next prime is 1325829839. The reversal of 1325829831 is 1389285231.

It is a happy number.

It is not a de Polignac number, because 1325829831 - 2¹ = 1325829829 is a prime.

It is a super-2 number, since 2×1325829831² = 3515649481538977122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1325829839) 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, 79371 + ... + 94611.

It is an arithmetic number, because the mean of its divisors is an integer number (111937248).

Almost surely, 2^1325829831 is an apocalyptic number.

1325829831 is a deficient number, since it is larger than the sum of its proper divisors (465166137).

1325829831 is a wasteful number, since it uses less digits than its factorization.

1325829831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15622.

The product of its digits is 103680, while the sum is 42.

The square root of 1325829831 is about 36411.9462676743. The cubic root of 1325829831 is about 1098.5738628482.

The spelling of 1325829831 in words is "one billion, three hundred twenty-five million, eight hundred twenty-nine thousand, eight hundred thirty-one".