1421856152 has 8 divisors (see below), whose sum is σ = 2665980300. Its totient is φ = 710928072.

The previous prime is 1421856133. The next prime is 1421856157. The reversal of 1421856152 is 2516581241.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421856157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 88866002 + ... + 88866017.

Almost surely, 2^1421856152 is an apocalyptic number.

It is an amenable number.

1421856152 is a deficient number, since it is larger than the sum of its proper divisors (1244124148).

1421856152 is a wasteful number, since it uses less digits than its factorization.

1421856152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177732025 (or 177732021 counting only the distinct ones).

The product of its digits is 19200, while the sum is 35.

The square root of 1421856152 is about 37707.5078996213. The cubic root of 1421856152 is about 1124.4803926698.

The spelling of 1421856152 in words is "one billion, four hundred twenty-one million, eight hundred fifty-six thousand, one hundred fifty-two".