1252191274 has 16 divisors (see below), whose sum is σ = 1909038528. Its totient is φ = 615871872.

The previous prime is 1252191251. The next prime is 1252191301. The reversal of 1252191274 is 4721912521.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93274 + ... + 105850.

It is an arithmetic number, because the mean of its divisors is an integer number (119314908).

Almost surely, 2^1252191274 is an apocalyptic number.

1252191274 is a deficient number, since it is larger than the sum of its proper divisors (656847254).

1252191274 is a wasteful number, since it uses less digits than its factorization.

1252191274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13389.

The product of its digits is 10080, while the sum is 34.

The square root of 1252191274 is about 35386.3147841083. The cubic root of 1252191274 is about 1077.8464384509.

The spelling of 1252191274 in words is "one billion, two hundred fifty-two million, one hundred ninety-one thousand, two hundred seventy-four".