131261963 has 4 divisors (see below), whose sum is σ = 150013680. Its totient is φ = 112510248.

The previous prime is 131261941. The next prime is 131261971. The reversal of 131261963 is 369162131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 369162131 = 13 ⋅28397087.

It is a cyclic number.

It is not a de Polignac number, because 131261963 - 2⁸ = 131261707 is a prime.

It is a super-2 number, since 2×131261963² = 34459405861226738, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131261863) 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, 9375848 + ... + 9375861.

It is an arithmetic number, because the mean of its divisors is an integer number (37503420).

Almost surely, 2^131261963 is an apocalyptic number.

131261963 is a deficient number, since it is larger than the sum of its proper divisors (18751717).

131261963 is an equidigital number, since it uses as much as digits as its factorization.

131261963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18751716.

The product of its digits is 5832, while the sum is 32.

The square root of 131261963 is about 11456.9613336172. The cubic root of 131261963 is about 508.2136181283.

The spelling of 131261963 in words is "one hundred thirty-one million, two hundred sixty-one thousand, nine hundred sixty-three".