1521314690 has 32 divisors (see below), whose sum is σ = 3152096640. Its totient is φ = 517837824.

The previous prime is 1521314689. The next prime is 1521314699. The reversal of 1521314690 is 964131251.

1521314690 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1521314690² = 4628796772019592200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1521314699) 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, 68447 + ... + 87906.

It is an arithmetic number, because the mean of its divisors is an integer number (98503020).

Almost surely, 2^1521314690 is an apocalyptic number.

1521314690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1521314690 is an abundant number, since it is smaller than the sum of its proper divisors (1630781950).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1521314690 is a wasteful number, since it uses less digits than its factorization.

1521314690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156506.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 1521314690 is about 39004.0342785205. The cubic root of 1521314690 is about 1150.1108122583.

The spelling of 1521314690 in words is "one billion, five hundred twenty-one million, three hundred fourteen thousand, six hundred ninety".