1253055394 has 8 divisors (see below), whose sum is σ = 1930382748. Its totient is φ = 609594480.

The previous prime is 1253055343. The next prime is 1253055481. The reversal of 1253055394 is 4935503521.

It can be written as a sum of positive squares in 2 ways, for example, as 1172720025 + 80335369 = 34245^2 + 8963^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (37).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8466517 + ... + 8466664.

Almost surely, 2^1253055394 is an apocalyptic number.

1253055394 is a deficient number, since it is larger than the sum of its proper divisors (677327354).

1253055394 is a wasteful number, since it uses less digits than its factorization.

1253055394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16933220.

The product of its (nonzero) digits is 81000, while the sum is 37.

The square root of 1253055394 is about 35398.5224832902. The cubic root of 1253055394 is about 1078.0943171149.

The spelling of 1253055394 in words is "one billion, two hundred fifty-three million, fifty-five thousand, three hundred ninety-four".