133437230 has 16 divisors (see below), whose sum is σ = 245298240. Its totient is φ = 52239072.

The previous prime is 133437203. The next prime is 133437251. The reversal of 133437230 is 32734331.

It is a self number, because there is not a number n which added to its sum of digits gives 133437230.

It is a congruent number.

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, 141485 + ... + 142424.

It is an arithmetic number, because the mean of its divisors is an integer number (15331140).

Almost surely, 2^133437230 is an apocalyptic number.

133437230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133437230 is a deficient number, since it is larger than the sum of its proper divisors (111861010).

133437230 is a wasteful number, since it uses less digits than its factorization.

133437230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283963.

The product of its (nonzero) digits is 4536, while the sum is 26.

The square root of 133437230 is about 11551.5033653633. The cubic root of 133437230 is about 511.0056154703.

The spelling of 133437230 in words is "one hundred thirty-three million, four hundred thirty-seven thousand, two hundred thirty".