1250155040 has 48 divisors (see below), whose sum is σ = 2955825432. Its totient is φ = 499666944.

The previous prime is 1250155037. The next prime is 1250155051. The reversal of 1250155040 is 405510521.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 993258256 + 256896784 = 31516^2 + 16028^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1250154997 and 1250155015.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 282122 + ... + 286518.

Almost surely, 2^1250155040 is an apocalyptic number.

1250155040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1250155040 is an abundant number, since it is smaller than the sum of its proper divisors (1705670392).

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

1250155040 is a wasteful number, since it uses less digits than its factorization.

1250155040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6189 (or 6181 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 1250155040 is about 35357.5315880507. The cubic root of 1250155040 is about 1077.2618796487.

Adding to 1250155040 its reverse (405510521), we get a palindrome (1655665561).

The spelling of 1250155040 in words is "one billion, two hundred fifty million, one hundred fifty-five thousand, forty".