133742838 has 48 divisors (see below), whose sum is σ = 289462320. Its totient is φ = 41143872.

The previous prime is 133742837. The next prime is 133742839. The reversal of 133742838 is 838247331.

133742838 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (133742837) and next prime (133742839).

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 133742796 and 133742805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133742837) 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, 91320 + ... + 92772.

It is an arithmetic number, because the mean of its divisors is an integer number (6030465).

Almost surely, 2^133742838 is an apocalyptic number.

133742838 is an abundant number, since it is smaller than the sum of its proper divisors (155719482).

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

133742838 is a wasteful number, since it uses less digits than its factorization.

133742838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1533 (or 1510 counting only the distinct ones).

The product of its digits is 96768, while the sum is 39.

The square root of 133742838 is about 11564.7238618136. The cubic root of 133742838 is about 511.3954325488.

The spelling of 133742838 in words is "one hundred thirty-three million, seven hundred forty-two thousand, eight hundred thirty-eight".