131018465 has 8 divisors (see below), whose sum is σ = 164058048. Its totient is φ = 100257520.

The previous prime is 131018441. The next prime is 131018483. The reversal of 131018465 is 564810131.

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

It is not a de Polignac number, because 131018465 - 2⁶ = 131018401 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 569531 + ... + 569760.

It is an arithmetic number, because the mean of its divisors is an integer number (20507256).

Almost surely, 2^131018465 is an apocalyptic number.

It is an amenable number.

131018465 is a deficient number, since it is larger than the sum of its proper divisors (33039583).

131018465 is a wasteful number, since it uses less digits than its factorization.

131018465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1139319.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 131018465 is about 11446.3297611068. The cubic root of 131018465 is about 507.8991690778.

Adding to 131018465 its reverse (564810131), we get a palindrome (695828596).

The spelling of 131018465 in words is "one hundred thirty-one million, eighteen thousand, four hundred sixty-five".