1250147990 has 32 divisors (see below), whose sum is σ = 2769560640. Its totient is φ = 395650944.

The previous prime is 1250147947. The next prime is 1250148007. The reversal of 1250147990 is 997410521.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 685985 + ... + 687804.

It is an arithmetic number, because the mean of its divisors is an integer number (86548770).

Almost surely, 2^1250147990 is an apocalyptic number.

1250147990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1250147990 is an abundant number, since it is smaller than the sum of its proper divisors (1519412650).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1250147990 is a wasteful number, since it uses less digits than its factorization.

1250147990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1373816.

The product of its (nonzero) digits is 22680, while the sum is 38.

The square root of 1250147990 is about 35357.4318920365. The cubic root of 1250147990 is about 1077.2598546437.

The spelling of 1250147990 in words is "one billion, two hundred fifty million, one hundred forty-seven thousand, nine hundred ninety".