1253663146 has 8 divisors (see below), whose sum is σ = 1898069760. Its totient is φ = 620973228.

The previous prime is 1253663137. The next prime is 1253663153. The reversal of 1253663146 is 6413663521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2928906 + ... + 2929333.

It is an arithmetic number, because the mean of its divisors is an integer number (237258720).

Almost surely, 2^1253663146 is an apocalyptic number.

1253663146 is a deficient number, since it is larger than the sum of its proper divisors (644406614).

1253663146 is a wasteful number, since it uses less digits than its factorization.

1253663146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5858348.

The product of its digits is 77760, while the sum is 37.

The square root of 1253663146 is about 35407.1058687377. The cubic root of 1253663146 is about 1078.2685866322.

The spelling of 1253663146 in words is "one billion, two hundred fifty-three million, six hundred sixty-three thousand, one hundred forty-six".