125416943 has 2 divisors, whose sum is σ = 125416944. Its totient is φ = 125416942.

The previous prime is 125416933. The next prime is 125416957. The reversal of 125416943 is 349614521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 125416943 - 2²⁰ = 124368367 is a prime.

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

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125416913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62708471 + 62708472.

It is an arithmetic number, because the mean of its divisors is an integer number (62708472).

Almost surely, 2^125416943 is an apocalyptic number.

125416943 is a deficient number, since it is larger than the sum of its proper divisors (1).

125416943 is an equidigital number, since it uses as much as digits as its factorization.

125416943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 35.

The square root of 125416943 is about 11198.9706223385. The cubic root of 125416943 is about 500.5553070399. Note that the first 3 decimals are identical.

The spelling of 125416943 in words is "one hundred twenty-five million, four hundred sixteen thousand, nine hundred forty-three".