133742830 has 32 divisors (see below), whose sum is σ = 259850304. Its totient is φ = 49268736.

The previous prime is 133742803. The next prime is 133742837. The reversal of 133742830 is 38247331.

133742830 = T₁₉₉₆ + T₁₉₉₇ + ... + T₂₀₆₀.

133742830 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 133742792 and 133742801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133742837) 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, 74119 + ... + 75901.

It is an arithmetic number, because the mean of its divisors is an integer number (8120322).

Almost surely, 2^133742830 is an apocalyptic number.

133742830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133742830 is a deficient number, since it is larger than the sum of its proper divisors (126107474).

133742830 is a wasteful number, since it uses less digits than its factorization.

133742830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2380.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 133742830 is about 11564.7235159341. The cubic root of 133742830 is about 511.3954223522.

The spelling of 133742830 in words is "one hundred thirty-three million, seven hundred forty-two thousand, eight hundred thirty".