131148247 has 2 divisors, whose sum is σ = 131148248. Its totient is φ = 131148246.

The previous prime is 131148233. The next prime is 131148263. The reversal of 131148247 is 742841131.

It is a weak prime.

It is an emirp because it is prime and its reverse (742841131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131148247 - 2⁷ = 131148119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131143247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65574123 + 65574124.

It is an arithmetic number, because the mean of its divisors is an integer number (65574124).

Almost surely, 2^131148247 is an apocalyptic number.

131148247 is a deficient number, since it is larger than the sum of its proper divisors (1).

131148247 is an equidigital number, since it uses as much as digits as its factorization.

131148247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5376, while the sum is 31.

The square root of 131148247 is about 11451.9975113515. The cubic root of 131148247 is about 508.0668157202.

Adding to 131148247 its reverse (742841131), we get a palindrome (873989378).

The spelling of 131148247 in words is "one hundred thirty-one million, one hundred forty-eight thousand, two hundred forty-seven".