133345250 has 32 divisors (see below), whose sum is σ = 252141552. Its totient is φ = 52800000.

The previous prime is 133345213. The next prime is 133345253. The reversal of 133345250 is 52543331.

It can be written as a sum of positive squares in 8 ways, for example, as 9223369 + 124121881 = 3037^2 + 11141^2 .

It is not an unprimeable number, because it can be changed into a prime (133345253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22610 + ... + 27890.

Almost surely, 2^133345250 is an apocalyptic number.

133345250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133345250 is a deficient number, since it is larger than the sum of its proper divisors (118796302).

133345250 is a wasteful number, since it uses less digits than its factorization.

133345250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5399 (or 5389 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 26.

The square root of 133345250 is about 11547.5213790666. The cubic root of 133345250 is about 510.8881742324. Note that the first 3 decimals are identical.

Adding to 133345250 its reverse (52543331), we get a palindrome (185888581).

The spelling of 133345250 in words is "one hundred thirty-three million, three hundred forty-five thousand, two hundred fifty".