125380981 has 16 divisors (see below), whose sum is σ = 150243840. Its totient is φ = 103284720.

The previous prime is 125380921. The next prime is 125381021. The reversal of 125380981 is 189083521.

It is not a de Polignac number, because 125380981 - 2¹¹ = 125378933 is a prime.

It is a super-2 number, since 2×125380981² = 31440780793044722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 125380981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125380921) 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, 8235 + ... + 17848.

It is an arithmetic number, because the mean of its divisors is an integer number (9390240).

Almost surely, 2^125380981 is an apocalyptic number.

125380981 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

125380981 is a deficient number, since it is larger than the sum of its proper divisors (24862859).

125380981 is a wasteful number, since it uses less digits than its factorization.

125380981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26136.

The product of its (nonzero) digits is 17280, while the sum is 37.

The square root of 125380981 is about 11197.3649132285. The cubic root of 125380981 is about 500.5074594622.

The spelling of 125380981 in words is "one hundred twenty-five million, three hundred eighty thousand, nine hundred eighty-one".