1521474452 has 12 divisors (see below), whose sum is σ = 2673630036. Its totient is φ = 757580160.

The previous prime is 1521474443. The next prime is 1521474463. The reversal of 1521474452 is 2544741251.

It can be written as a sum of positive squares in 2 ways, for example, as 510488836 + 1010985616 = 22594^2 + 31796^2 .

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 788183 + ... + 790110.

It is an arithmetic number, because the mean of its divisors is an integer number (222802503).

Almost surely, 2^1521474452 is an apocalyptic number.

It is an amenable number.

1521474452 is a deficient number, since it is larger than the sum of its proper divisors (1152155584).

1521474452 is a wasteful number, since it uses less digits than its factorization.

1521474452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1578538 (or 1578536 counting only the distinct ones).

The product of its digits is 44800, while the sum is 35.

The square root of 1521474452 is about 39006.0822436707. The cubic root of 1521474452 is about 1150.1510707648.

The spelling of 1521474452 in words is "one billion, five hundred twenty-one million, four hundred seventy-four thousand, four hundred fifty-two".