125854381 has 4 divisors (see below), whose sum is σ = 125936064. Its totient is φ = 125772700.

The previous prime is 125854369. The next prime is 125854397. The reversal of 125854381 is 183458521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 183458521 = 101 ⋅1816421.

It is a cyclic number.

It is not a de Polignac number, because 125854381 - 2¹⁵ = 125821613 is a prime.

It is a super-2 number, since 2×125854381² = 31678650433786322, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

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 125854381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125854331) 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, 38485 + ... + 41626.

It is an arithmetic number, because the mean of its divisors is an integer number (31484016).

Almost surely, 2^125854381 is an apocalyptic number.

It is an amenable number.

125854381 is a deficient number, since it is larger than the sum of its proper divisors (81683).

125854381 is an equidigital number, since it uses as much as digits as its factorization.

125854381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81682.

The product of its digits is 38400, while the sum is 37.

The square root of 125854381 is about 11218.4838993511. The cubic root of 125854381 is about 501.1365890397.

The spelling of 125854381 in words is "one hundred twenty-five million, eight hundred fifty-four thousand, three hundred eighty-one".