153128949 has 8 divisors (see below), whose sum is σ = 205524672. Its totient is φ = 101409600.

The previous prime is 153128909. The next prime is 153128957. The reversal of 153128949 is 949821351.

153128949 is digitally balanced in base 2, 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 not a de Polignac number, because 153128949 - 2⁸ = 153128693 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 153128949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (153128909) 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, 168564 + ... + 169469.

It is an arithmetic number, because the mean of its divisors is an integer number (25690584).

Almost surely, 2^153128949 is an apocalyptic number.

It is an amenable number.

153128949 is a deficient number, since it is larger than the sum of its proper divisors (52395723).

153128949 is a wasteful number, since it uses less digits than its factorization.

153128949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338187.

The product of its digits is 77760, while the sum is 42.

The square root of 153128949 is about 12374.5282334318. The cubic root of 153128949 is about 534.9983392967.

The spelling of 153128949 in words is "one hundred fifty-three million, one hundred twenty-eight thousand, nine hundred forty-nine".