1250966140 has 12 divisors (see below), whose sum is σ = 2627028936. Its totient is φ = 500386448.

The previous prime is 1250966051. The next prime is 1250966141. The reversal of 1250966140 is 416690521.

It is a junction number, because it is equal to n+sod(n) for n = 1250966096 and 1250966105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1250966141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31274134 + ... + 31274173.

It is an arithmetic number, because the mean of its divisors is an integer number (218919078).

Almost surely, 2^1250966140 is an apocalyptic number.

1250966140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1250966140 is an abundant number, since it is smaller than the sum of its proper divisors (1376062796).

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

1250966140 is a wasteful number, since it uses less digits than its factorization.

1250966140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62548316 (or 62548314 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 1250966140 is about 35368.9997031299. Note that the first 3 decimals coincide. The cubic root of 1250966140 is about 1077.4948049484.

The spelling of 1250966140 in words is "one billion, two hundred fifty million, nine hundred sixty-six thousand, one hundred forty".