1421535152 has 20 divisors (see below), whose sum is σ = 2755668120. Its totient is φ = 710395008.

The previous prime is 1421535139. The next prime is 1421535161. The reversal of 1421535152 is 2515351241.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9599 + ... + 54177.

It is an arithmetic number, because the mean of its divisors is an integer number (137783406).

Almost surely, 2^1421535152 is an apocalyptic number.

It is an amenable number.

1421535152 is a deficient number, since it is larger than the sum of its proper divisors (1334132968).

1421535152 is a wasteful number, since it uses less digits than its factorization.

1421535152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46580 (or 46574 counting only the distinct ones).

The product of its digits is 6000, while the sum is 29.

The square root of 1421535152 is about 37703.2512125944. The cubic root of 1421535152 is about 1124.3957649404.

Adding to 1421535152 its reverse (2515351241), we get a palindrome (3936886393).

The spelling of 1421535152 in words is "one billion, four hundred twenty-one million, five hundred thirty-five thousand, one hundred fifty-two".