137066725 has 6 divisors (see below), whose sum is σ = 169962770. Its totient is φ = 109653360.

The previous prime is 137066701. The next prime is 137066749. The reversal of 137066725 is 527660731.

137066725 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (137066701) and next prime (137066749).

It can be written as a sum of positive squares in 3 ways, for example, as 19061956 + 118004769 = 4366^2 + 10863^2 .

It is not a de Polignac number, because 137066725 - 2⁵ = 137066693 is a prime.

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, 2741310 + ... + 2741359.

Almost surely, 2^137066725 is an apocalyptic number.

It is an amenable number.

137066725 is a deficient number, since it is larger than the sum of its proper divisors (32896045).

137066725 is an equidigital number, since it uses as much as digits as its factorization.

137066725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5482679 (or 5482674 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 37.

The square root of 137066725 is about 11707.5499144783. The cubic root of 137066725 is about 515.5973525427.

The spelling of 137066725 in words is "one hundred thirty-seven million, sixty-six thousand, seven hundred twenty-five".