152991669 has 16 divisors (see below), whose sum is σ = 207071424. Its totient is φ = 100464000.

The previous prime is 152991649. The next prime is 152991673. The reversal of 152991669 is 966199251.

It is not a de Polignac number, because 152991669 - 2¹³ = 152983477 is a prime.

It is a super-2 number, since 2×152991669² = 46812901566811122, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152991649) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 62737 + ... + 65129.

It is an arithmetic number, because the mean of its divisors is an integer number (12941964).

Almost surely, 2^152991669 is an apocalyptic number.

It is an amenable number.

152991669 is a deficient number, since it is larger than the sum of its proper divisors (54079755).

152991669 is a wasteful number, since it uses less digits than its factorization.

152991669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2708.

The product of its digits is 262440, while the sum is 48.

The square root of 152991669 is about 12368.9801115533. The cubic root of 152991669 is about 534.8384162795.

The spelling of 152991669 in words is "one hundred fifty-two million, nine hundred ninety-one thousand, six hundred sixty-nine".