131761123 has 8 divisors (see below), whose sum is σ = 146790000. Its totient is φ = 117431328.

The previous prime is 131761109. The next prime is 131761139. The reversal of 131761123 is 321167131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131761123 - 2²¹ = 129663971 is a prime.

It is a super-2 number, since 2×131761123² = 34721987068442258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131761183) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 174373 + ... + 175126.

It is an arithmetic number, because the mean of its divisors is an integer number (18348750).

Almost surely, 2^131761123 is an apocalyptic number.

131761123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

131761123 is a deficient number, since it is larger than the sum of its proper divisors (15028877).

131761123 is a wasteful number, since it uses less digits than its factorization.

131761123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349541.

The product of its digits is 756, while the sum is 25.

The square root of 131761123 is about 11478.7247985131. The cubic root of 131761123 is about 508.8570109761.

The spelling of 131761123 in words is "one hundred thirty-one million, seven hundred sixty-one thousand, one hundred twenty-three".