125256842 has 4 divisors (see below), whose sum is σ = 187885266. Its totient is φ = 62628420.

The previous prime is 125256841. The next prime is 125256853. The reversal of 125256842 is 248652521.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 114041041 + 11215801 = 10679^2 + 3349^2 .

It is not an unprimeable number, because it can be changed into a prime (125256841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31314209 + ... + 31314212.

Almost surely, 2^125256842 is an apocalyptic number.

125256842 is a deficient number, since it is larger than the sum of its proper divisors (62628424).

125256842 is an equidigital number, since it uses as much as digits as its factorization.

125256842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62628423.

The product of its digits is 38400, while the sum is 35.

The square root of 125256842 is about 11191.8203166420. The cubic root of 125256842 is about 500.3422217152.

The spelling of 125256842 in words is "one hundred twenty-five million, two hundred fifty-six thousand, eight hundred forty-two".