1253474626 has 4 divisors (see below), whose sum is σ = 1880211942. Its totient is φ = 626737312.

The previous prime is 1253474597. The next prime is 1253474653. The reversal of 1253474626 is 6264743521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6264743521 = 4507 ⋅1390003.

It can be written as a sum of positive squares in only one way, i.e., 1167930625 + 85544001 = 34175^2 + 9249^2 .

It is a Smith number, since the sum of its digits (40) 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, 313368655 + ... + 313368658.

Almost surely, 2^1253474626 is an apocalyptic number.

1253474626 is a deficient number, since it is larger than the sum of its proper divisors (626737316).

1253474626 is an equidigital number, since it uses as much as digits as its factorization.

1253474626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626737315.

The product of its digits is 241920, while the sum is 40.

The square root of 1253474626 is about 35404.4435911652. The cubic root of 1253474626 is about 1078.2145355940.

The spelling of 1253474626 in words is "one billion, two hundred fifty-three million, four hundred seventy-four thousand, six hundred twenty-six".