136887925 has 6 divisors (see below), whose sum is σ = 169741058. Its totient is φ = 109510320.

The previous prime is 136887911. The next prime is 136887931. The reversal of 136887925 is 529788631.

136887925 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 675684 + 136212241 = 822^2 + 11671^2 .

It is not a de Polignac number, because 136887925 - 2²³ = 128499317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2737734 + ... + 2737783.

Almost surely, 2^136887925 is an apocalyptic number.

It is an amenable number.

136887925 is a deficient number, since it is larger than the sum of its proper divisors (32853133).

136887925 is an equidigital number, since it uses as much as digits as its factorization.

136887925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5475527 (or 5475522 counting only the distinct ones).

The product of its digits is 725760, while the sum is 49.

The square root of 136887925 is about 11699.9113244503. The cubic root of 136887925 is about 515.3730605134.

The spelling of 136887925 in words is "one hundred thirty-six million, eight hundred eighty-seven thousand, nine hundred twenty-five".