133864372 has 12 divisors (see below), whose sum is σ = 240594340. Its totient is φ = 65123136.

The previous prime is 133864363. The next prime is 133864373. The reversal of 133864372 is 273468331.

It can be written as a sum of positive squares in 2 ways, for example, as 52215076 + 81649296 = 7226^2 + 9036^2 .

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133864373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 452097 + ... + 452392.

Almost surely, 2^133864372 is an apocalyptic number.

It is an amenable number.

133864372 is a deficient number, since it is larger than the sum of its proper divisors (106729968).

133864372 is a wasteful number, since it uses less digits than its factorization.

133864372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 904530 (or 904528 counting only the distinct ones).

The product of its digits is 72576, while the sum is 37.

The square root of 133864372 is about 11569.9771823457. The cubic root of 133864372 is about 511.5502897280.

The spelling of 133864372 in words is "one hundred thirty-three million, eight hundred sixty-four thousand, three hundred seventy-two".