133070830 has 32 divisors (see below), whose sum is σ = 246250368. Its totient is φ = 51744000.

The previous prime is 133070761. The next prime is 133070831. The reversal of 133070830 is 38070331.

It is a junction number, because it is equal to n+sod(n) for n = 133070795 and 133070804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133070831) 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, 189480 + ... + 190180.

It is an arithmetic number, because the mean of its divisors is an integer number (7695324).

Almost surely, 2^133070830 is an apocalyptic number.

133070830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133070830 is a deficient number, since it is larger than the sum of its proper divisors (113179538).

133070830 is a wasteful number, since it uses less digits than its factorization.

133070830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1212.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 133070830 is about 11535.6330558838. The cubic root of 133070830 is about 510.5374700339.

The spelling of 133070830 in words is "one hundred thirty-three million, seventy thousand, eight hundred thirty".