131420246 has 4 divisors (see below), whose sum is σ = 197130372. Its totient is φ = 65710122.

The previous prime is 131420173. The next prime is 131420269. The reversal of 131420246 is 642024131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 642024131 = 7 ⋅91717733.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32855060 + ... + 32855063.

It is an arithmetic number, because the mean of its divisors is an integer number (49282593).

Almost surely, 2^131420246 is an apocalyptic number.

131420246 is a deficient number, since it is larger than the sum of its proper divisors (65710126).

131420246 is an equidigital number, since it uses as much as digits as its factorization.

131420246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65710125.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 131420246 is about 11463.8669741061. The cubic root of 131420246 is about 508.4178135207.

Adding to 131420246 its reverse (642024131), we get a palindrome (773444377).

The spelling of 131420246 in words is "one hundred thirty-one million, four hundred twenty thousand, two hundred forty-six".