245893761 has 9 divisors (see below), whose sum is σ = 355247841. Its totient is φ = 163897812.

The previous prime is 245893751. The next prime is 245893771. The reversal of 245893761 is 167398542.

The square root of 245893761 is 15681.

It is a perfect power (a square), and thus also a powerful number.

245893761 is a `hidden beast` number, since 2 + 4 + 589 + 3 + 7 + 61 = 666.

It is an interprime number because it is at equal distance from previous prime (245893751) and next prime (245893771).

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 245893761 - 2¹⁹ = 245369473 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (245893721) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 44430 + ... + 49656.

Almost surely, 2^245893761 is an apocalyptic number.

245893761 is the 15681-st square number.

245893761 is the 7841-st centered octagonal number.

It is an amenable number.

245893761 is a deficient number, since it is larger than the sum of its proper divisors (109354080).

245893761 is an frugal number, since it uses more digits than its factorization.

245893761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10460 (or 5230 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The cubic root of 245893761 is about 626.4924427335.

The spelling of 245893761 in words is "two hundred forty-five million, eight hundred ninety-three thousand, seven hundred sixty-one".