126072274 has 4 divisors (see below), whose sum is σ = 189108414. Its totient is φ = 63036136.

The previous prime is 126072263. The next prime is 126072281. The reversal of 126072274 is 472270621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 472270621 = 4933 ⋅95737.

It can be written as a sum of positive squares in only one way, i.e., 115412049 + 10660225 = 10743^2 + 3265^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31518067 + ... + 31518070.

Almost surely, 2^126072274 is an apocalyptic number.

126072274 is a deficient number, since it is larger than the sum of its proper divisors (63036140).

126072274 is an equidigital number, since it uses as much as digits as its factorization.

126072274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63036139.

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 126072274 is about 11228.1910386313. The cubic root of 126072274 is about 501.4256299618.

The spelling of 126072274 in words is "one hundred twenty-six million, seventy-two thousand, two hundred seventy-four".