131418146 has 4 divisors (see below), whose sum is σ = 197127222. Its totient is φ = 65709072.

The previous prime is 131418121. The next prime is 131418163. The reversal of 131418146 is 641814131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 641814131 = 7 ⋅91687733.

It can be written as a sum of positive squares in only one way, i.e., 116402521 + 15015625 = 10789^2 + 3875^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32854535 + ... + 32854538.

Almost surely, 2^131418146 is an apocalyptic number.

131418146 is a deficient number, since it is larger than the sum of its proper divisors (65709076).

131418146 is an equidigital number, since it uses as much as digits as its factorization.

131418146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65709075.

The product of its digits is 2304, while the sum is 29.

The square root of 131418146 is about 11463.7753816097. The cubic root of 131418146 is about 508.4151054573.

The spelling of 131418146 in words is "one hundred thirty-one million, four hundred eighteen thousand, one hundred forty-six".