1250113989 has 8 divisors (see below), whose sum is σ = 1764866880. Its totient is φ = 784385216.

The previous prime is 1250113979. The next prime is 1250113999. The reversal of 1250113989 is 9893110521.

It is an interprime number because it is at equal distance from previous prime (1250113979) and next prime (1250113999).

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

It is a cyclic number.

It is not a de Polignac number, because 1250113989 - 2⁴ = 1250113973 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1250113979) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12255969 + ... + 12256070.

It is an arithmetic number, because the mean of its divisors is an integer number (220608360).

Almost surely, 2^1250113989 is an apocalyptic number.

It is an amenable number.

1250113989 is a deficient number, since it is larger than the sum of its proper divisors (514752891).

1250113989 is a wasteful number, since it uses less digits than its factorization.

1250113989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24512059.

The product of its (nonzero) digits is 19440, while the sum is 39.

The square root of 1250113989 is about 35356.9510704755. The cubic root of 1250113989 is about 1077.2500882681.

The spelling of 1250113989 in words is "one billion, two hundred fifty million, one hundred thirteen thousand, nine hundred eighty-nine".