1250013985 has 8 divisors (see below), whose sum is σ = 1636382016. Its totient is φ = 909101040.

The previous prime is 1250013983. The next prime is 1250013991. The reversal of 1250013985 is 5893100521.

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

It is not a de Polignac number, because 1250013985 - 2¹ = 1250013983 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1250013985.

It is not an unprimeable number, because it can be changed into a prime (1250013983) 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, 11363709 + ... + 11363818.

It is an arithmetic number, because the mean of its divisors is an integer number (204547752).

Almost surely, 2^1250013985 is an apocalyptic number.

It is an amenable number.

1250013985 is a deficient number, since it is larger than the sum of its proper divisors (386368031).

1250013985 is a wasteful number, since it uses less digits than its factorization.

1250013985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22727543.

The product of its (nonzero) digits is 10800, while the sum is 34.

The square root of 1250013985 is about 35355.5368365409. The cubic root of 1250013985 is about 1077.2213623035.

The spelling of 1250013985 in words is "one billion, two hundred fifty million, thirteen thousand, nine hundred eighty-five".