133784149974 has 12 divisors (see below), whose sum is σ = 267570091836. Its totient is φ = 44594418012.

The previous prime is 133784149973. The next prime is 133784149981. The reversal of 133784149974 is 479941487331.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133784149973) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 821277 + ... + 970599.

It is an arithmetic number, because the mean of its divisors is an integer number (22297507653).

Almost surely, 2^133784149974 is an apocalyptic number.

133784149974 is an abundant number, since it is smaller than the sum of its proper divisors (133785941862).

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

133784149974 is an frugal number, since it uses more digits than its factorization.

133784149974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298651 (or 149328 counting only the distinct ones).

The product of its digits is 18289152, while the sum is 60.

The spelling of 133784149974 in words is "one hundred thirty-three billion, seven hundred eighty-four million, one hundred forty-nine thousand, nine hundred seventy-four".