133151765953 has 4 divisors (see below), whose sum is σ = 133153305300. Its totient is φ = 133150226608.

The previous prime is 133151765947. The next prime is 133151765969. The reversal of 133151765953 is 359567151331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 359567151331 = 61723 ⋅5825497.

It can be written as a sum of positive squares in 2 ways, for example, as 44376371649 + 88775394304 = 210657^2 + 297952^2 .

It is a cyclic number.

It is not a de Polignac number, because 133151765953 - 2¹⁷ = 133151634881 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133151765897 and 133151765906.

It is not an unprimeable number, because it can be changed into a prime (133151765993) 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, 631678 + ... + 815671.

It is an arithmetic number, because the mean of its divisors is an integer number (33288326325).

Almost surely, 2^133151765953 is an apocalyptic number.

It is an amenable number.

133151765953 is a deficient number, since it is larger than the sum of its proper divisors (1539347).

133151765953 is an equidigital number, since it uses as much as digits as its factorization.

133151765953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1539346.

The product of its digits is 1275750, while the sum is 49.

The spelling of 133151765953 in words is "one hundred thirty-three billion, one hundred fifty-one million, seven hundred sixty-five thousand, nine hundred fifty-three".