125625149 has 16 divisors (see below), whose sum is σ = 141668352. Its totient is φ = 110529408.

The previous prime is 125625109. The next prime is 125625173. The reversal of 125625149 is 941526521.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125625149 is a prime.

It is a super-2 number, since 2×125625149² = 31563356122544402, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125625109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113969 + ... + 115065.

It is an arithmetic number, because the mean of its divisors is an integer number (8854272).

Almost surely, 2^125625149 is an apocalyptic number.

It is an amenable number.

125625149 is a deficient number, since it is larger than the sum of its proper divisors (16043203).

125625149 is a wasteful number, since it uses less digits than its factorization.

125625149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1516.

The product of its digits is 21600, while the sum is 35.

The square root of 125625149 is about 11208.2625326141. The cubic root of 125625149 is about 500.8321462968.

The spelling of 125625149 in words is "one hundred twenty-five million, six hundred twenty-five thousand, one hundred forty-nine".