1525316645 has 32 divisors (see below), whose sum is σ = 1976534784. Its totient is φ = 1127104000.

The previous prime is 1525316633. The next prime is 1525316657. The reversal of 1525316645 is 5466135251.

It is an interprime number because it is at equal distance from previous prime (1525316633) and next prime (1525316657).

It is not a de Polignac number, because 1525316645 - 2⁸ = 1525316389 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1525316599 and 1525316608.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 474614 + ... + 477816.

It is an arithmetic number, because the mean of its divisors is an integer number (61766712).

Almost surely, 2^1525316645 is an apocalyptic number.

It is an amenable number.

1525316645 is a deficient number, since it is larger than the sum of its proper divisors (451218139).

1525316645 is a wasteful number, since it uses less digits than its factorization.

1525316645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3373.

The product of its digits is 108000, while the sum is 38.

The square root of 1525316645 is about 39055.3023928890. The cubic root of 1525316645 is about 1151.1184191881.

The spelling of 1525316645 in words is "one billion, five hundred twenty-five million, three hundred sixteen thousand, six hundred forty-five".