131345019 has 24 divisors (see below), whose sum is σ = 213202080. Its totient is φ = 77311872.

The previous prime is 131344987. The next prime is 131345029. The reversal of 131345019 is 910543131.

It is not a de Polignac number, because 131345019 - 2⁵ = 131344987 is a prime.

It is a super-2 number, since 2×131345019² = 34503028032220722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131344983 and 131345001.

It is not an unprimeable number, because it can be changed into a prime (131345029) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21714 + ... + 27095.

It is an arithmetic number, because the mean of its divisors is an integer number (8883420).

Almost surely, 2^131345019 is an apocalyptic number.

131345019 is a deficient number, since it is larger than the sum of its proper divisors (81857061).

131345019 is a wasteful number, since it uses less digits than its factorization.

131345019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48851 (or 48848 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 131345019 is about 11460.5854562496. The cubic root of 131345019 is about 508.3207862411.

The spelling of 131345019 in words is "one hundred thirty-one million, three hundred forty-five thousand, nineteen".