133835390 has 64 divisors (see below), whose sum is σ = 286747776. Its totient is φ = 44470272.

The previous prime is 133835389. The next prime is 133835399. The reversal of 133835390 is 93538331.

It is a self number, because there is not a number n which added to its sum of digits gives 133835390.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133835399) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49514 + ... + 52146.

It is an arithmetic number, because the mean of its divisors is an integer number (4480434).

Almost surely, 2^133835390 is an apocalyptic number.

133835390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133835390 is an abundant number, since it is smaller than the sum of its proper divisors (152912386).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133835390 is a wasteful number, since it uses less digits than its factorization.

133835390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2693.

The product of its (nonzero) digits is 29160, while the sum is 35.

The square root of 133835390 is about 11568.7246488107. The cubic root of 133835390 is about 511.5133697212.

The spelling of 133835390 in words is "one hundred thirty-three million, eight hundred thirty-five thousand, three hundred ninety".