133515013250 has 16 divisors (see below), whose sum is σ = 249940105272. Its totient is φ = 53406005200.

The previous prime is 133515013237. The next prime is 133515013279. The reversal of 133515013250 is 52310515331.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 64475874241 + 69039139009 = 253921^2 + 262753^2 .

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, 267029777 + ... + 267030276.

Almost surely, 2^133515013250 is an apocalyptic number.

133515013250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133515013250 is a deficient number, since it is larger than the sum of its proper divisors (116425092022).

133515013250 is an equidigital number, since it uses as much as digits as its factorization.

133515013250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534060070 (or 534060060 counting only the distinct ones).

The product of its (nonzero) digits is 6750, while the sum is 29.

Adding to 133515013250 its reverse (52310515331), we get a palindrome (185825528581).

The spelling of 133515013250 in words is "one hundred thirty-three billion, five hundred fifteen million, thirteen thousand, two hundred fifty".