2271515401 has 4 divisors (see below), whose sum is σ = 2405133972. Its totient is φ = 2137896832.

The previous prime is 2271515387. The next prime is 2271515423. The reversal of 2271515401 is 1045151722.

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 1493049600 + 778465801 = 38640^2 + 27901^2 .

It is a cyclic number.

It is not a de Polignac number, because 2271515401 - 2⁷ = 2271515273 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2271515401.

It is not an unprimeable number, because it can be changed into a prime (2271515471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66809260 + ... + 66809293.

It is an arithmetic number, because the mean of its divisors is an integer number (601283493).

Almost surely, 2^2271515401 is an apocalyptic number.

It is an amenable number.

2271515401 is a deficient number, since it is larger than the sum of its proper divisors (133618571).

2271515401 is a wasteful number, since it uses less digits than its factorization.

2271515401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133618570.

The product of its (nonzero) digits is 2800, while the sum is 28.

The square root of 2271515401 is about 47660.4175495767. The cubic root of 2271515401 is about 1314.5342172012.

The spelling of 2271515401 in words is "two billion, two hundred seventy-one million, five hundred fifteen thousand, four hundred one".