152520999 has 8 divisors (see below), whose sum is σ = 214064640. Its totient is φ = 96329016.

The previous prime is 152520989. The next prime is 152521001. The reversal of 152520999 is 999025251.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 152520999 - 2⁴ = 152520983 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 152520999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152520989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1337847 + ... + 1337960.

It is an arithmetic number, because the mean of its divisors is an integer number (26758080).

Almost surely, 2^152520999 is an apocalyptic number.

152520999 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

152520999 is a deficient number, since it is larger than the sum of its proper divisors (61543641).

152520999 is a wasteful number, since it uses less digits than its factorization.

152520999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2675829.

The product of its (nonzero) digits is 72900, while the sum is 42.

The square root of 152520999 is about 12349.9392306197. The cubic root of 152520999 is about 534.2893864143.

The spelling of 152520999 in words is "one hundred fifty-two million, five hundred twenty thousand, nine hundred ninety-nine".