1521374142 has 32 divisors (see below), whose sum is σ = 3130807680. Its totient is φ = 492579360.

The previous prime is 1521374131. The next prime is 1521374171. The reversal of 1521374142 is 2414731251.

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 15 ways as a sum of consecutive naturals, for example, 30409 + ... + 62987.

It is an arithmetic number, because the mean of its divisors is an integer number (97837740).

Almost surely, 2^1521374142 is an apocalyptic number.

1521374142 is an abundant number, since it is smaller than the sum of its proper divisors (1609433538).

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

1521374142 is a wasteful number, since it uses less digits than its factorization.

1521374142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32808.

The product of its digits is 6720, while the sum is 30.

The square root of 1521374142 is about 39004.7963973663. The cubic root of 1521374142 is about 1150.1257939269.

The spelling of 1521374142 in words is "one billion, five hundred twenty-one million, three hundred seventy-four thousand, one hundred forty-two".