1253017930 has 8 divisors (see below), whose sum is σ = 2255432292. Its totient is φ = 501207168.

The previous prime is 1253017921. The next prime is 1253017937. The reversal of 1253017930 is 397103521.

It can be written as a sum of positive squares in 2 ways, for example, as 1215428769 + 37589161 = 34863^2 + 6131^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 1253017892 and 1253017901.

It is not an unprimeable number, because it can be changed into a prime (1253017937) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62650887 + ... + 62650906.

Almost surely, 2^1253017930 is an apocalyptic number.

1253017930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1253017930 is a deficient number, since it is larger than the sum of its proper divisors (1002414362).

1253017930 is a wasteful number, since it uses less digits than its factorization.

1253017930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125301800.

The product of its (nonzero) digits is 5670, while the sum is 31.

The square root of 1253017930 is about 35397.9933047058. The cubic root of 1253017930 is about 1078.0835726769.

The spelling of 1253017930 in words is "one billion, two hundred fifty-three million, seventeen thousand, nine hundred thirty".