128949052 has 12 divisors (see below), whose sum is σ = 225741376. Its totient is φ = 64451520.

The previous prime is 128949047. The next prime is 128949061. The reversal of 128949052 is 250949821.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 128948996 and 128949014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15988 + ... + 22660.

Almost surely, 2^128949052 is an apocalyptic number.

It is an amenable number.

128949052 is a deficient number, since it is larger than the sum of its proper divisors (96792324).

128949052 is a wasteful number, since it uses less digits than its factorization.

128949052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11508 (or 11506 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 128949052 is about 11355.5736094660. The cubic root of 128949052 is about 505.2109069056.

The spelling of 128949052 in words is "one hundred twenty-eight million, nine hundred forty-nine thousand, fifty-two".