125154242 has 4 divisors (see below), whose sum is σ = 187731366. Its totient is φ = 62577120.

The previous prime is 125154241. The next prime is 125154257. The reversal of 125154242 is 242451521.

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., 77281681 + 47872561 = 8791^2 + 6919^2 .

It is not an unprimeable number, because it can be changed into a prime (125154241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31288559 + ... + 31288562.

Almost surely, 2^125154242 is an apocalyptic number.

125154242 is a deficient number, since it is larger than the sum of its proper divisors (62577124).

125154242 is an equidigital number, since it uses as much as digits as its factorization.

125154242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62577123.

The product of its digits is 3200, while the sum is 26.

The square root of 125154242 is about 11187.2356728550. The cubic root of 125154242 is about 500.2055714692.

The spelling of 125154242 in words is "one hundred twenty-five million, one hundred fifty-four thousand, two hundred forty-two".