1521045930 has 32 divisors (see below), whose sum is σ = 3865247424. Its totient is φ = 381752576.

The previous prime is 1521045899. The next prime is 1521045941. The reversal of 1521045930 is 395401251.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1490712 + ... + 1491731.

It is an arithmetic number, because the mean of its divisors is an integer number (120788982).

Almost surely, 2^1521045930 is an apocalyptic number.

1521045930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1521045930 is an abundant number, since it is smaller than the sum of its proper divisors (2344201494).

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

1521045930 is a wasteful number, since it uses less digits than its factorization.

1521045930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2982470.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 1521045930 is about 39000.5888417085. The cubic root of 1521045930 is about 1150.0430809318.

The spelling of 1521045930 in words is "one billion, five hundred twenty-one million, forty-five thousand, nine hundred thirty".