1250138750 has 40 divisors (see below), whose sum is σ = 2678030256. Its totient is φ = 428616000.

The previous prime is 1250138731. The next prime is 1250138761. The reversal of 1250138750 is 578310521.

1250138750 is a modest number, since divided by 138750 gives 1250 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 62687 + ... + 80186.

Almost surely, 2^1250138750 is an apocalyptic number.

1250138750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1250138750 is an abundant number, since it is smaller than the sum of its proper divisors (1427891506).

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

1250138750 is an equidigital number, since it uses as much as digits as its factorization.

1250138750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142902 (or 142887 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 32.

The square root of 1250138750 is about 35357.3012261965. The cubic root of 1250138750 is about 1077.2572005831.

The spelling of 1250138750 in words is "one billion, two hundred fifty million, one hundred thirty-eight thousand, seven hundred fifty".