131225299 has 2 divisors, whose sum is σ = 131225300. Its totient is φ = 131225298.

The previous prime is 131225291. The next prime is 131225309. The reversal of 131225299 is 992522131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131225299 - 2³ = 131225291 is a prime.

It is not a weakly prime, because it can be changed into another prime (131225291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65612649 + 65612650.

It is an arithmetic number, because the mean of its divisors is an integer number (65612650).

Almost surely, 2^131225299 is an apocalyptic number.

131225299 is a deficient number, since it is larger than the sum of its proper divisors (1).

131225299 is an equidigital number, since it uses as much as digits as its factorization.

131225299 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9720, while the sum is 34.

The square root of 131225299 is about 11455.3611466422. The cubic root of 131225299 is about 508.1662957642.

The spelling of 131225299 in words is "one hundred thirty-one million, two hundred twenty-five thousand, two hundred ninety-nine".