153995990 has 8 divisors (see below), whose sum is σ = 277192800. Its totient is φ = 61598392.

The previous prime is 153995983. The next prime is 153995993. The reversal of 153995990 is 99599351.

153995990 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (153995993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7699790 + ... + 7699809.

It is an arithmetic number, because the mean of its divisors is an integer number (34649100).

Almost surely, 2^153995990 is an apocalyptic number.

153995990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

153995990 is a deficient number, since it is larger than the sum of its proper divisors (123196810).

153995990 is a wasteful number, since it uses less digits than its factorization.

153995990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15399606.

The product of its (nonzero) digits is 492075, while the sum is 50.

The square root of 153995990 is about 12409.5120774348. The cubic root of 153995990 is about 536.0061886677.

The spelling of 153995990 in words is "one hundred fifty-three million, nine hundred ninety-five thousand, nine hundred ninety".