133691147044 has 189 divisors, whose sum is σ = 302948571891. Its totient is φ = 51598834560.

The previous prime is 133691147027. The next prime is 133691147047. The reversal of 133691147044 is 440741196331.

The square root of 133691147044 is 365638.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 89048528100 + 44642618944 = 298410^2 + 211288^2 .

It is not an unprimeable number, because it can be changed into a prime (133691147047) by changing a digit.

It is a polite number, since it can be written in 62 ways as a sum of consecutive naturals, for example, 3260759664 + ... + 3260759704.

Almost surely, 2^133691147044 is an apocalyptic number.

133691147044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

133691147044 is the 365638-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133691147044

133691147044 is an abundant number, since it is smaller than the sum of its proper divisors (169257424847).

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

133691147044 is an frugal number, since it uses more digits than its factorization.

133691147044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154 (or 63 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 43.

The spelling of 133691147044 in words is "one hundred thirty-three billion, six hundred ninety-one million, one hundred forty-seven thousand, forty-four".