133136830 has 16 divisors (see below), whose sum is σ = 240408000. Its totient is φ = 53085472.

The previous prime is 133136827. The next prime is 133136833. The reversal of 133136830 is 38631331.

It is an interprime number because it is at equal distance from previous prime (133136827) and next prime (133136833).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133136833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17830 + ... + 24169.

It is an arithmetic number, because the mean of its divisors is an integer number (15025500).

Almost surely, 2^133136830 is an apocalyptic number.

133136830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133136830 is a deficient number, since it is larger than the sum of its proper divisors (107271170).

133136830 is a wasteful number, since it uses less digits than its factorization.

133136830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42323.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 133136830 is about 11538.4934025201. The cubic root of 133136830 is about 510.6218609402.

The spelling of 133136830 in words is "one hundred thirty-three million, one hundred thirty-six thousand, eight hundred thirty".