133271371537 has 4 divisors (see below), whose sum is σ = 136521892836. Its totient is φ = 130020850240.

The previous prime is 133271371477. The next prime is 133271371579. The reversal of 133271371537 is 735173172331.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 52408487041 + 80862884496 = 228929^2 + 284364^2 .

It is a cyclic number.

It is not a de Polignac number, because 133271371537 - 2³⁵ = 98911633169 is a prime.

It is a super-2 number, since 2×133271371537² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133271371493 and 133271371502.

It is not an unprimeable number, because it can be changed into a prime (133271671537) 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, 1625260588 + ... + 1625260669.

It is an arithmetic number, because the mean of its divisors is an integer number (34130473209).

Almost surely, 2^133271371537 is an apocalyptic number.

It is an amenable number.

133271371537 is a deficient number, since it is larger than the sum of its proper divisors (3250521299).

133271371537 is an equidigital number, since it uses as much as digits as its factorization.

133271371537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3250521298.

The product of its digits is 277830, while the sum is 43.

The spelling of 133271371537 in words is "one hundred thirty-three billion, two hundred seventy-one million, three hundred seventy-one thousand, five hundred thirty-seven".