152617621 has 16 divisors (see below), whose sum is σ = 172307520. Its totient is φ = 134225280.

The previous prime is 152617609. The next prime is 152617639. The reversal of 152617621 is 126716251.

It is a cyclic number.

It is not a de Polignac number, because 152617621 - 2²³ = 144229013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152617021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19590 + ... + 26248.

It is an arithmetic number, because the mean of its divisors is an integer number (10769220).

Almost surely, 2^152617621 is an apocalyptic number.

It is an amenable number.

152617621 is a deficient number, since it is larger than the sum of its proper divisors (19689899).

152617621 is a wasteful number, since it uses less digits than its factorization.

152617621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6756.

The product of its digits is 5040, while the sum is 31.

The square root of 152617621 is about 12353.8504523893. The cubic root of 152617621 is about 534.4021866451.

The spelling of 152617621 in words is "one hundred fifty-two million, six hundred seventeen thousand, six hundred twenty-one".