125136061 has 4 divisors (see below), whose sum is σ = 125237500. Its totient is φ = 125034624.

The previous prime is 125136049. The next prime is 125136103. The reversal of 125136061 is 160631521.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 35928036 + 89208025 = 5994^2 + 9445^2 .

It is a cyclic number.

It is not a de Polignac number, because 125136061 - 2²³ = 116747453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125136041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48846 + ... + 51343.

It is an arithmetic number, because the mean of its divisors is an integer number (31309375).

Almost surely, 2^125136061 is an apocalyptic number.

It is an amenable number.

125136061 is a deficient number, since it is larger than the sum of its proper divisors (101439).

125136061 is a wasteful number, since it uses less digits than its factorization.

125136061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101438.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 125136061 is about 11186.4230654843. The cubic root of 125136061 is about 500.1813488839.

Adding to 125136061 its reverse (160631521), we get a palindrome (285767582).

The spelling of 125136061 in words is "one hundred twenty-five million, one hundred thirty-six thousand, sixty-one".