152591997 has 8 divisors (see below), whose sum is σ = 210471840. Its totient is φ = 98220080.

The previous prime is 152591981. The next prime is 152592019. The reversal of 152591997 is 799195251.

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

It is a cyclic number.

It is not a de Polignac number, because 152591997 - 2⁴ = 152591981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152591917) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 876879 + ... + 877052.

It is an arithmetic number, because the mean of its divisors is an integer number (26308980).

Almost surely, 2^152591997 is an apocalyptic number.

It is an amenable number.

152591997 is a deficient number, since it is larger than the sum of its proper divisors (57879843).

152591997 is a wasteful number, since it uses less digits than its factorization.

152591997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1753963.

The product of its digits is 255150, while the sum is 48.

The square root of 152591997 is about 12352.8133232879. The cubic root of 152591997 is about 534.3722768440.

The spelling of 152591997 in words is "one hundred fifty-two million, five hundred ninety-one thousand, nine hundred ninety-seven".