245134993 has 2 divisors, whose sum is σ = 245134994. Its totient is φ = 245134992.

The previous prime is 245134987. The next prime is 245135003. The reversal of 245134993 is 399431542.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 219247249 + 25887744 = 14807^2 + 5088^2 .

It is a cyclic number.

It is not a de Polignac number, because 245134993 - 2⁵ = 245134961 is a prime.

It is a super-2 number, since 2×245134993² = 120182329586220098, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (245134913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122567496 + 122567497.

It is an arithmetic number, because the mean of its divisors is an integer number (122567497).

Almost surely, 2^245134993 is an apocalyptic number.

It is an amenable number.

245134993 is a deficient number, since it is larger than the sum of its proper divisors (1).

245134993 is an equidigital number, since it uses as much as digits as its factorization.

245134993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 116640, while the sum is 40.

The square root of 245134993 is about 15656.7874418733. The cubic root of 245134993 is about 625.8473779617.

The spelling of 245134993 in words is "two hundred forty-five million, one hundred thirty-four thousand, nine hundred ninety-three".