133266290 has 16 divisors (see below), whose sum is σ = 243259200. Its totient is φ = 52555440.

The previous prime is 133266229. The next prime is 133266311. The reversal of 133266290 is 92662331.

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, 93140 + ... + 94559.

It is an arithmetic number, because the mean of its divisors is an integer number (15203700).

Almost surely, 2^133266290 is an apocalyptic number.

133266290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133266290 is a deficient number, since it is larger than the sum of its proper divisors (109992910).

133266290 is a wasteful number, since it uses less digits than its factorization.

133266290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187777.

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 133266290 is about 11544.1019572767. The cubic root of 133266290 is about 510.7873140088.

The spelling of 133266290 in words is "one hundred thirty-three million, two hundred sixty-six thousand, two hundred ninety".