133761342 has 128 divisors (see below), whose sum is σ = 334430208. Its totient is φ = 35107200.

The previous prime is 133761317. The next prime is 133761343. The reversal of 133761342 is 243167331.

It is a super-2 number, since 2×133761342² = 35784193227281928, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133761343) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1250053 + ... + 1250159.

It is an arithmetic number, because the mean of its divisors is an integer number (2612736).

Almost surely, 2^133761342 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133761342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167215104).

133761342 is an abundant number, since it is smaller than the sum of its proper divisors (200668866).

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

133761342 is a wasteful number, since it uses less digits than its factorization.

133761342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214.

The product of its digits is 9072, while the sum is 30.

The square root of 133761342 is about 11565.5238532459. The cubic root of 133761342 is about 511.4190161785.

The spelling of 133761342 in words is "one hundred thirty-three million, seven hundred sixty-one thousand, three hundred forty-two".