125000001250 has 40 divisors (see below), whose sum is σ = 248082397596. Its totient is φ = 47058816000.

The previous prime is 125000001241. The next prime is 125000001253. The reversal of 125000001250 is 52100000521.

It can be written as a sum of positive squares in 10 ways, for example, as 17247409 + 124982753841 = 4153^2 + 353529^2 .

It is not an unprimeable number, because it can be changed into a prime (125000001253) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2919927 + ... + 2962426.

Almost surely, 2^125000001250 is an apocalyptic number.

125000001250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125000001250 is a deficient number, since it is larger than the sum of its proper divisors (123082396346).

125000001250 is an equidigital number, since it uses as much as digits as its factorization.

125000001250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5882392 (or 5882377 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 16.

Adding to 125000001250 its reverse (52100000521), we get a palindrome (177100001771).

It can be divided in two parts, 12500000 and 1250, that multiplied together give a 6-th power (15625000000 = 50⁶).

The spelling of 125000001250 in words is "one hundred twenty-five billion, one thousand, two hundred fifty".