133742994 has 48 divisors (see below), whose sum is σ = 336028224. Its totient is φ = 34737120.

The previous prime is 133742993. The next prime is 133743007. The reversal of 133742994 is 499247331.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (133742993) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8077 + ... + 18240.

It is an arithmetic number, because the mean of its divisors is an integer number (7000588).

Almost surely, 2^133742994 is an apocalyptic number.

133742994 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

133742994 is an abundant number, since it is smaller than the sum of its proper divisors (202285230).

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

133742994 is a wasteful number, since it uses less digits than its factorization.

133742994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26351 (or 26340 counting only the distinct ones).

The product of its digits is 163296, while the sum is 42.

The square root of 133742994 is about 11564.7306064603. The cubic root of 133742994 is about 511.3956313822.

The spelling of 133742994 in words is "one hundred thirty-three million, seven hundred forty-two thousand, nine hundred ninety-four".