132953902781 has 4 divisors (see below), whose sum is σ = 151947317472. Its totient is φ = 113960488092.

The previous prime is 132953902729. The next prime is 132953902793. The reversal of 132953902781 is 187209359231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 187209359231 = 151 ⋅1239797081.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-132953902781 is a prime.

It is a super-2 number, since 2×132953902781² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132953902721) 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, 9496707335 + ... + 9496707348.

It is an arithmetic number, because the mean of its divisors is an integer number (37986829368).

Almost surely, 2^132953902781 is an apocalyptic number.

It is an amenable number.

132953902781 is a deficient number, since it is larger than the sum of its proper divisors (18993414691).

132953902781 is an equidigital number, since it uses as much as digits as its factorization.

132953902781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18993414690.

The product of its (nonzero) digits is 816480, while the sum is 50.

The spelling of 132953902781 in words is "one hundred thirty-two billion, nine hundred fifty-three million, nine hundred two thousand, seven hundred eighty-one".