125613861 has 8 divisors (see below), whose sum is σ = 167678784. Its totient is φ = 83645760.

The previous prime is 125613847. The next prime is 125613863. The reversal of 125613861 is 168316521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 125613861 - 2¹⁴ = 125597477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125613863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21121 + ... + 26406.

It is an arithmetic number, because the mean of its divisors is an integer number (20959848).

Almost surely, 2^125613861 is an apocalyptic number.

It is an amenable number.

125613861 is a deficient number, since it is larger than the sum of its proper divisors (42064923).

125613861 is an equidigital number, since it uses as much as digits as its factorization.

125613861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48411.

The product of its digits is 8640, while the sum is 33.

The square root of 125613861 is about 11207.7589642176. The cubic root of 125613861 is about 500.8171451534.

The spelling of 125613861 in words is "one hundred twenty-five million, six hundred thirteen thousand, eight hundred sixty-one".