245366761 has 2 divisors, whose sum is σ = 245366762. Its totient is φ = 245366760.

The previous prime is 245366749. The next prime is 245366773. The reversal of 245366761 is 167663542.

It is a balanced prime because it is at equal distance from previous prime (245366749) and next prime (245366773).

It can be written as a sum of positive squares in only one way, i.e., 244734736 + 632025 = 15644^2 + 795^2 .

It is a cyclic number.

It is not a de Polignac number, because 245366761 - 2⁷ = 245366633 is a prime.

It is a super-2 number, since 2×245366761² = 120409694807262242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (245366701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122683380 + 122683381.

It is an arithmetic number, because the mean of its divisors is an integer number (122683381).

Almost surely, 2^245366761 is an apocalyptic number.

It is an amenable number.

245366761 is a deficient number, since it is larger than the sum of its proper divisors (1).

245366761 is an equidigital number, since it uses as much as digits as its factorization.

245366761 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 40.

The square root of 245366761 is about 15664.1872115983. The cubic root of 245366761 is about 626.0445559919.

The spelling of 245366761 in words is "two hundred forty-five million, three hundred sixty-six thousand, seven hundred sixty-one".