1252770226 has 4 divisors (see below), whose sum is σ = 1879155342. Its totient is φ = 626385112.

The previous prime is 1252770223. The next prime is 1252770247. The reversal of 1252770226 is 6220772521.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6220772521 = 479 ⋅12986999.

It can be written as a sum of positive squares in only one way, i.e., 946485225 + 306285001 = 30765^2 + 17501^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1252770191 and 1252770200.

It is not an unprimeable number, because it can be changed into a prime (1252770223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 313192555 + ... + 313192558.

Almost surely, 2^1252770226 is an apocalyptic number.

1252770226 is a deficient number, since it is larger than the sum of its proper divisors (626385116).

1252770226 is an equidigital number, since it uses as much as digits as its factorization.

1252770226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626385115.

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 1252770226 is about 35394.4942893665. The cubic root of 1252770226 is about 1078.0125273481.

The spelling of 1252770226 in words is "one billion, two hundred fifty-two million, seven hundred seventy thousand, two hundred twenty-six".