1315525402 has 32 divisors (see below), whose sum is σ = 2065295232. Its totient is φ = 627891264.

The previous prime is 1315525381. The next prime is 1315525403. The reversal of 1315525402 is 2045255131.

It is a super-3 number, since 3×1315525402³ (a number of 28 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1315525403) 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, 1809163 + ... + 1809889.

It is an arithmetic number, because the mean of its divisors is an integer number (64540476).

Almost surely, 2^1315525402 is an apocalyptic number.

1315525402 is a deficient number, since it is larger than the sum of its proper divisors (749769830).

1315525402 is a wasteful number, since it uses less digits than its factorization.

1315525402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1222.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 1315525402 is about 36270.1723458822. The cubic root of 1315525402 is about 1095.7203969347.

The spelling of 1315525402 in words is "one billion, three hundred fifteen million, five hundred twenty-five thousand, four hundred two".