2275398761 has 4 divisors (see below), whose sum is σ = 2275526724. Its totient is φ = 2275270800.

The previous prime is 2275398739. The next prime is 2275398767. The reversal of 2275398761 is 1678935722.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2075713600 + 199685161 = 45560^2 + 14131^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2275398761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2275398767) 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, 31970 + ... + 74651.

It is an arithmetic number, because the mean of its divisors is an integer number (568881681).

Almost surely, 2^2275398761 is an apocalyptic number.

It is an amenable number.

2275398761 is a deficient number, since it is larger than the sum of its proper divisors (127963).

2275398761 is a wasteful number, since it uses less digits than its factorization.

2275398761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127962.

The product of its digits is 1270080, while the sum is 50.

The square root of 2275398761 is about 47701.1400387873. The cubic root of 2275398761 is about 1315.2828955668.

The spelling of 2275398761 in words is "two billion, two hundred seventy-five million, three hundred ninety-eight thousand, seven hundred sixty-one".