133631342 has 24 divisors (see below), whose sum is σ = 220763880. Its totient is φ = 60621600.

The previous prime is 133631321. The next prime is 133631363. The reversal of 133631342 is 243136331.

It is a happy number.

133631342 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 (133631321) and next prime (133631363).

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16592 + ... + 23292.

It is an arithmetic number, because the mean of its divisors is an integer number (9198495).

Almost surely, 2^133631342 is an apocalyptic number.

133631342 is a deficient number, since it is larger than the sum of its proper divisors (87132538).

133631342 is a wasteful number, since it uses less digits than its factorization.

133631342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6788 (or 6775 counting only the distinct ones).

The product of its digits is 3888, while the sum is 26.

The square root of 133631342 is about 11559.9023352276. The cubic root of 133631342 is about 511.2532831372.

Adding to 133631342 its reverse (243136331), we get a palindrome (376767673).

The spelling of 133631342 in words is "one hundred thirty-three million, six hundred thirty-one thousand, three hundred forty-two".