128925042 has 32 divisors (see below), whose sum is σ = 278836992. Its totient is φ = 39585024.

The previous prime is 128925037. The next prime is 128925073. The reversal of 128925042 is 240529821.

128925042 is nontrivially palindromic in base 5.

It is a junction number, because it is equal to n+sod(n) for n = 128924994 and 128925012.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8653 + ... + 18240.

It is an arithmetic number, because the mean of its divisors is an integer number (8713656).

Almost surely, 2^128925042 is an apocalyptic number.

128925042 is an abundant number, since it is smaller than the sum of its proper divisors (149911950).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

128925042 is a wasteful number, since it uses less digits than its factorization.

128925042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26962.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 128925042 is about 11354.5163701498. The cubic root of 128925042 is about 505.1795486117.

The spelling of 128925042 in words is "one hundred twenty-eight million, nine hundred twenty-five thousand, forty-two".