131761503 has 48 divisors (see below), whose sum is σ = 206578944. Its totient is φ = 80720640.

The previous prime is 131761499. The next prime is 131761507. The reversal of 131761503 is 305167131.

It is an interprime number because it is at equal distance from previous prime (131761499) and next prime (131761507).

It is not a de Polignac number, because 131761503 - 2² = 131761499 is a prime.

It is a super-2 number, since 2×131761503² = 34722187345638018, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131761507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1005748 + ... + 1005878.

It is an arithmetic number, because the mean of its divisors is an integer number (4303728).

Almost surely, 2^131761503 is an apocalyptic number.

131761503 is a deficient number, since it is larger than the sum of its proper divisors (74817441).

131761503 is a wasteful number, since it uses less digits than its factorization.

131761503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316 (or 313 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The square root of 131761503 is about 11478.7413508625. The cubic root of 131761503 is about 508.8575001580.

The spelling of 131761503 in words is "one hundred thirty-one million, seven hundred sixty-one thousand, five hundred three".