133397230 has 32 divisors (see below), whose sum is σ = 245306880. Its totient is φ = 52213920.

The previous prime is 133397227. The next prime is 133397279. The reversal of 133397230 is 32793331.

It is a junction number, because it is equal to n+sod(n) for n = 133397192 and 133397201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 183127 + ... + 183853.

It is an arithmetic number, because the mean of its divisors is an integer number (7665840).

Almost surely, 2^133397230 is an apocalyptic number.

133397230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133397230 is a deficient number, since it is larger than the sum of its proper divisors (111909650).

133397230 is a wasteful number, since it uses less digits than its factorization.

133397230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1104.

The product of its (nonzero) digits is 10206, while the sum is 31.

The square root of 133397230 is about 11549.7718592187. The cubic root of 133397230 is about 510.9545495936.

The spelling of 133397230 in words is "one hundred thirty-three million, three hundred ninety-seven thousand, two hundred thirty".