1325657031 has 8 divisors (see below), whose sum is σ = 1769036544. Its totient is φ = 883024440.

The previous prime is 1325657029. The next prime is 1325657033. The reversal of 1325657031 is 1307565231.

It is an interprime number because it is at equal distance from previous prime (1325657029) and next prime (1325657033).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1325657031 - 2¹ = 1325657029 is a prime.

It is a super-2 number, since 2×1325657031² = 3514733127679469922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1325656983 and 1325657001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1325657033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 182575 + ... + 189696.

It is an arithmetic number, because the mean of its divisors is an integer number (221129568).

Almost surely, 2^1325657031 is an apocalyptic number.

1325657031 is a deficient number, since it is larger than the sum of its proper divisors (443379513).

1325657031 is a wasteful number, since it uses less digits than its factorization.

1325657031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373461.

The product of its (nonzero) digits is 18900, while the sum is 33.

The square root of 1325657031 is about 36409.5733427350. The cubic root of 1325657031 is about 1098.5261337940.

The spelling of 1325657031 in words is "one billion, three hundred twenty-five million, six hundred fifty-seven thousand, thirty-one".