133455250 has 16 divisors (see below), whose sum is σ = 249828696. Its totient is φ = 53382000.

The previous prime is 133455247. The next prime is 133455281. The reversal of 133455250 is 52554331.

It can be written as a sum of positive squares in 4 ways, for example, as 62204769 + 71250481 = 7887^2 + 8441^2 .

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, 266661 + ... + 267160.

Almost surely, 2^133455250 is an apocalyptic number.

133455250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133455250 is a deficient number, since it is larger than the sum of its proper divisors (116373446).

133455250 is an equidigital number, since it uses as much as digits as its factorization.

133455250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533838 (or 533828 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 133455250 is about 11552.2833240879. The cubic root of 133455250 is about 511.0286173135.

The spelling of 133455250 in words is "one hundred thirty-three million, four hundred fifty-five thousand, two hundred fifty".