133142334 has 128 divisors (see below), whose sum is σ = 325140480. Its totient is φ = 35942400.

The previous prime is 133142327. The next prime is 133142389. The reversal of 133142334 is 433241331.

It is a super-2 number, since 2×133142334² = 35453762205935112, which contains 22 as substring.

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, 1685307 + ... + 1685385.

It is an arithmetic number, because the mean of its divisors is an integer number (2540160).

Almost surely, 2^133142334 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133142334, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162570240).

133142334 is an abundant number, since it is smaller than the sum of its proper divisors (191998146).

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

133142334 is a wasteful number, since it uses less digits than its factorization.

133142334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186.

The product of its digits is 2592, while the sum is 24.

The square root of 133142334 is about 11538.7319060632. The cubic root of 133142334 is about 510.6288973703.

Adding to 133142334 its reverse (433241331), we get a palindrome (566383665).

The spelling of 133142334 in words is "one hundred thirty-three million, one hundred forty-two thousand, three hundred thirty-four".