263045461 has 4 divisors (see below), whose sum is σ = 300623392. Its totient is φ = 225467532.

The previous prime is 263045441. The next prime is 263045477. The reversal of 263045461 is 164540362.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 263045461 - 2⁵ = 263045429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263045441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18788955 + ... + 18788968.

It is an arithmetic number, because the mean of its divisors is an integer number (75155848).

Almost surely, 2^263045461 is an apocalyptic number.

It is an amenable number.

263045461 is a deficient number, since it is larger than the sum of its proper divisors (37577931).

263045461 is an equidigital number, since it uses as much as digits as its factorization.

263045461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37577930.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 263045461 is about 16218.6763023374. The cubic root of 263045461 is about 640.7327715288.

The spelling of 263045461 in words is "two hundred sixty-three million, forty-five thousand, four hundred sixty-one".