152821136542 has 32 divisors (see below), whose sum is σ = 238415063040. Its totient is φ = 73388108640.

The previous prime is 152821136537. The next prime is 152821136549. The reversal of 152821136542 is 245631128251.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 152821136495 and 152821136504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152821136549) 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, 6812088 + ... + 6834484.

It is an arithmetic number, because the mean of its divisors is an integer number (7450470720).

Almost surely, 2^152821136542 is an apocalyptic number.

152821136542 is a deficient number, since it is larger than the sum of its proper divisors (85593926498).

152821136542 is a wasteful number, since it uses less digits than its factorization.

152821136542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23256.

The product of its digits is 115200, while the sum is 40.

The spelling of 152821136542 in words is "one hundred fifty-two billion, eight hundred twenty-one million, one hundred thirty-six thousand, five hundred forty-two".