1380126250 has 20 divisors (see below), whose sum is σ = 2586910986. Its totient is φ = 552050000.

The previous prime is 1380126229. The next prime is 1380126263. The reversal of 1380126250 is 526210831.

It can be written as a sum of positive squares in 5 ways, for example, as 4977361 + 1375148889 = 2231^2 + 37083^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 550801 + ... + 553300.

Almost surely, 2^1380126250 is an apocalyptic number.

1380126250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1380126250 is a deficient number, since it is larger than the sum of its proper divisors (1206784736).

1380126250 is an equidigital number, since it uses as much as digits as its factorization.

1380126250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1104123 (or 1104108 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 1380126250 is about 37150.0504710290. The cubic root of 1380126250 is about 1113.3702318638.

The spelling of 1380126250 in words is "one billion, three hundred eighty million, one hundred twenty-six thousand, two hundred fifty".