131761011 has 4 divisors (see below), whose sum is σ = 175681352. Its totient is φ = 87840672.

The previous prime is 131761001. The next prime is 131761027. The reversal of 131761011 is 110167131.

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

It is not a de Polignac number, because 131761011 - 2⁶ = 131760947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131761001) 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, 21960166 + ... + 21960171.

It is an arithmetic number, because the mean of its divisors is an integer number (43920338).

Almost surely, 2^131761011 is an apocalyptic number.

131761011 is a deficient number, since it is larger than the sum of its proper divisors (43920341).

131761011 is an equidigital number, since it uses as much as digits as its factorization.

131761011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43920340.

The product of its (nonzero) digits is 126, while the sum is 21.

The square root of 131761011 is about 11478.7199199214. The cubic root of 131761011 is about 508.8568667960.

The spelling of 131761011 in words is "one hundred thirty-one million, seven hundred sixty-one thousand, eleven".