131214511 has 4 divisors (see below), whose sum is σ = 132019672. Its totient is φ = 130409352.

The previous prime is 131214509. The next prime is 131214533. The reversal of 131214511 is 115412131.

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

It is a cyclic number.

It is not a de Polignac number, because 131214511 - 2¹ = 131214509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131214581) 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, 402336 + ... + 402661.

It is an arithmetic number, because the mean of its divisors is an integer number (33004918).

Almost surely, 2^131214511 is an apocalyptic number.

131214511 is a deficient number, since it is larger than the sum of its proper divisors (805161).

131214511 is an equidigital number, since it uses as much as digits as its factorization.

131214511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 805160.

The product of its digits is 120, while the sum is 19.

The square root of 131214511 is about 11454.8902657337. The cubic root of 131214511 is about 508.1523699733.

Adding to 131214511 its reverse (115412131), we get a palindrome (246626642).

The spelling of 131214511 in words is "one hundred thirty-one million, two hundred fourteen thousand, five hundred eleven".