1325515106 has 4 divisors (see below), whose sum is σ = 1988272662. Its totient is φ = 662757552.

The previous prime is 1325515099. The next prime is 1325515111. The reversal of 1325515106 is 6015155231.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1282284481 + 43230625 = 35809^2 + 6575^2 .

It is a super-4 number, since 4×1325515106⁴ (a number of 38 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 331378775 + ... + 331378778.

Almost surely, 2^1325515106 is an apocalyptic number.

1325515106 is a deficient number, since it is larger than the sum of its proper divisors (662757556).

1325515106 is an equidigital number, since it uses as much as digits as its factorization.

1325515106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662757555.

The product of its (nonzero) digits is 4500, while the sum is 29.

The square root of 1325515106 is about 36407.6242839326. The cubic root of 1325515106 is about 1098.4869296153.

The spelling of 1325515106 in words is "one billion, three hundred twenty-five million, five hundred fifteen thousand, one hundred six".