126725122 has 4 divisors (see below), whose sum is σ = 190087686. Its totient is φ = 63362560.

The previous prime is 126725119. The next prime is 126725189. The reversal of 126725122 is 221527621.

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., 63856081 + 62869041 = 7991^2 + 7929^2 .

It is a super-3 number, since 3×126725122³ (a number of 25 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31681279 + ... + 31681282.

Almost surely, 2^126725122 is an apocalyptic number.

126725122 is a deficient number, since it is larger than the sum of its proper divisors (63362564).

126725122 is an equidigital number, since it uses as much as digits as its factorization.

126725122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63362563.

The product of its digits is 3360, while the sum is 28.

The square root of 126725122 is about 11257.2253242084. The cubic root of 126725122 is about 502.2896615616.

The spelling of 126725122 in words is "one hundred twenty-six million, seven hundred twenty-five thousand, one hundred twenty-two".