245765441 has 2 divisors, whose sum is σ = 245765442. Its totient is φ = 245765440.

The previous prime is 245765431. The next prime is 245765449. The reversal of 245765441 is 144567542.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 160757041 + 85008400 = 12679^2 + 9220^2 .

It is a cyclic number.

It is not a de Polignac number, because 245765441 - 2²² = 241571137 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 245765395 and 245765404.

It is not a weakly prime, because it can be changed into another prime (245765449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122882720 + 122882721.

It is an arithmetic number, because the mean of its divisors is an integer number (122882721).

Almost surely, 2^245765441 is an apocalyptic number.

It is an amenable number.

245765441 is a deficient number, since it is larger than the sum of its proper divisors (1).

245765441 is an equidigital number, since it uses as much as digits as its factorization.

245765441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 134400, while the sum is 38.

The square root of 245765441 is about 15676.9078902697. The cubic root of 245765441 is about 626.3834451212.

The spelling of 245765441 in words is "two hundred forty-five million, seven hundred sixty-five thousand, four hundred forty-one".