156425890 has 16 divisors (see below), whose sum is σ = 281796408. Its totient is φ = 62519296.

The previous prime is 156425881. The next prime is 156425897. The reversal of 156425890 is 98524651.

156425890 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 156425049 + 841 = 12507^2 + 29^2 .

It is not an unprimeable number, because it can be changed into a prime (156425897) 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, 8034 + ... + 19426.

Almost surely, 2^156425890 is an apocalyptic number.

156425890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

156425890 is a deficient number, since it is larger than the sum of its proper divisors (125370518).

156425890 is a wasteful number, since it uses less digits than its factorization.

156425890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12773.

The product of its (nonzero) digits is 86400, while the sum is 40.

The square root of 156425890 is about 12507.0336211270. The cubic root of 156425890 is about 538.8106999292.

The spelling of 156425890 in words is "one hundred fifty-six million, four hundred twenty-five thousand, eight hundred ninety".