1522481021 has 16 divisors (see below), whose sum is σ = 1670906880. Its totient is φ = 1382684160.

The previous prime is 1522480961. The next prime is 1522481027. The reversal of 1522481021 is 1201842251.

It is a cyclic number.

It is not a de Polignac number, because 1522481021 - 2¹⁰ = 1522479997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1522481027) 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, 17645 + ... + 57933.

It is an arithmetic number, because the mean of its divisors is an integer number (104431680).

Almost surely, 2^1522481021 is an apocalyptic number.

It is an amenable number.

1522481021 is a deficient number, since it is larger than the sum of its proper divisors (148425859).

1522481021 is a wasteful number, since it uses less digits than its factorization.

1522481021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40396.

The product of its (nonzero) digits is 1280, while the sum is 26.

The square root of 1522481021 is about 39018.9828288745. The cubic root of 1522481021 is about 1150.4046518009.

The spelling of 1522481021 in words is "one billion, five hundred twenty-two million, four hundred eighty-one thousand, twenty-one".