1521345914 has 16 divisors (see below), whose sum is σ = 2542444416. Its totient is φ = 676807200.

The previous prime is 1521345913. The next prime is 1521345923. The reversal of 1521345914 is 4195431251.

It is not an unprimeable number, because it can be changed into a prime (1521345913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 734627 + ... + 736694.

It is an arithmetic number, because the mean of its divisors is an integer number (158902776).

Almost surely, 2^1521345914 is an apocalyptic number.

1521345914 is a deficient number, since it is larger than the sum of its proper divisors (1021098502).

1521345914 is a wasteful number, since it uses less digits than its factorization.

1521345914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1471381.

The product of its digits is 21600, while the sum is 35.

The square root of 1521345914 is about 39004.4345427542. The cubic root of 1521345914 is about 1150.1186806313.

The spelling of 1521345914 in words is "one billion, five hundred twenty-one million, three hundred forty-five thousand, nine hundred fourteen".