153688997 has 24 divisors (see below), whose sum is σ = 193971456. Its totient is φ = 119196000.

The previous prime is 153688981. The next prime is 153689021. The reversal of 153688997 is 799886351.

It is not a de Polignac number, because 153688997 - 2⁴ = 153688981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (153688907) 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 23 ways as a sum of consecutive naturals, for example, 356372 + ... + 356802.

It is an arithmetic number, because the mean of its divisors is an integer number (8082144).

Almost surely, 2^153688997 is an apocalyptic number.

It is an amenable number.

153688997 is a deficient number, since it is larger than the sum of its proper divisors (40282459).

153688997 is a wasteful number, since it uses less digits than its factorization.

153688997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 881 (or 870 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 56.

The square root of 153688997 is about 12397.1366452097. The cubic root of 153688997 is about 535.6497732973.

The spelling of 153688997 in words is "one hundred fifty-three million, six hundred eighty-eight thousand, nine hundred ninety-seven".