245161537 has 2 divisors, whose sum is σ = 245161538. Its totient is φ = 245161536.

The previous prime is 245161529. The next prime is 245161549. The reversal of 245161537 is 735161542.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 240901441 + 4260096 = 15521^2 + 2064^2 .

It is a cyclic number.

It is not a de Polignac number, because 245161537 - 2³ = 245161529 is a prime.

It is not a weakly prime, because it can be changed into another prime (245165537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122580768 + 122580769.

It is an arithmetic number, because the mean of its divisors is an integer number (122580769).

Almost surely, 2^245161537 is an apocalyptic number.

It is an amenable number.

245161537 is a deficient number, since it is larger than the sum of its proper divisors (1).

245161537 is an equidigital number, since it uses as much as digits as its factorization.

245161537 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25200, while the sum is 34.

The square root of 245161537 is about 15657.6351024029. The cubic root of 245161537 is about 625.8699667308.

The spelling of 245161537 in words is "two hundred forty-five million, one hundred sixty-one thousand, five hundred thirty-seven".