131015333 has 2 divisors, whose sum is σ = 131015334. Its totient is φ = 131015332.

The previous prime is 131015329. The next prime is 131015371. The reversal of 131015333 is 333510131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 130827844 + 187489 = 11438^2 + 433^2 .

It is a cyclic number.

It is not a de Polignac number, because 131015333 - 2² = 131015329 is a prime.

It is a super-2 number, since 2×131015333² = 34330034962201778, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131015933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65507666 + 65507667.

It is an arithmetic number, because the mean of its divisors is an integer number (65507667).

Almost surely, 2^131015333 is an apocalyptic number.

It is an amenable number.

131015333 is a deficient number, since it is larger than the sum of its proper divisors (1).

131015333 is an equidigital number, since it uses as much as digits as its factorization.

131015333 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 405, while the sum is 20.

The square root of 131015333 is about 11446.1929478757. The cubic root of 131015333 is about 507.8951219311.

Adding to 131015333 its reverse (333510131), we get a palindrome (464525464).

The spelling of 131015333 in words is "one hundred thirty-one million, fifteen thousand, three hundred thirty-three".