125872141 has 4 divisors (see below), whose sum is σ = 126269532. Its totient is φ = 125474752.

The previous prime is 125872133. The next prime is 125872177. The reversal of 125872141 is 141278521.

125872141 = T₉₁₅₉ + T₉₁₆₀ + T₉₁₆₁.

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 52272900 + 73599241 = 7230^2 + 8579^2 .

It is a cyclic number.

It is not a de Polignac number, because 125872141 - 2³ = 125872133 is a prime.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125872111) 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, 198220 + ... + 198853.

It is an arithmetic number, because the mean of its divisors is an integer number (31567383).

Almost surely, 2^125872141 is an apocalyptic number.

125872141 is the 9161-st centered triangular number.

It is an amenable number.

125872141 is a deficient number, since it is larger than the sum of its proper divisors (397391).

125872141 is an equidigital number, since it uses as much as digits as its factorization.

125872141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397390.

The product of its digits is 4480, while the sum is 31.

The square root of 125872141 is about 11219.2754222365. The cubic root of 125872141 is about 501.1601606392.

The spelling of 125872141 in words is "one hundred twenty-five million, eight hundred seventy-two thousand, one hundred forty-one".