156025420 has 24 divisors (see below), whose sum is σ = 328071744. Its totient is φ = 62330496.

The previous prime is 156025409. The next prime is 156025447. The reversal of 156025420 is 24520651.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12589 + ... + 21691.

It is an arithmetic number, because the mean of its divisors is an integer number (13669656).

Almost surely, 2^156025420 is an apocalyptic number.

156025420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

156025420 is an abundant number, since it is smaller than the sum of its proper divisors (172046324).

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

156025420 is a wasteful number, since it uses less digits than its factorization.

156025420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9969 (or 9967 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 156025420 is about 12491.0135697629. The cubic root of 156025420 is about 538.3504992071.

The spelling of 156025420 in words is "one hundred fifty-six million, twenty-five thousand, four hundred twenty".