133068390 has 128 divisors (see below), whose sum is σ = 398684160. Its totient is φ = 27675648.

The previous prime is 133068373. The next prime is 133068407. The reversal of 133068390 is 93860331.

133068390 = T₂₇₄₀ + T₂₇₄₁ + ... + T₂₇₇₄.

It is an interprime number because it is at equal distance from previous prime (133068373) and next prime (133068407).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 215362 + ... + 215978.

It is an arithmetic number, because the mean of its divisors is an integer number (3114720).

Almost surely, 2^133068390 is an apocalyptic number.

133068390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 133068390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (199342080).

133068390 is an abundant number, since it is smaller than the sum of its proper divisors (265615770).

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

133068390 is a wasteful number, since it uses less digits than its factorization.

133068390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 726.

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 133068390 is about 11535.5272961404. The cubic root of 133068390 is about 510.5343495929.

The spelling of 133068390 in words is "one hundred thirty-three million, sixty-eight thousand, three hundred ninety".