2281660957 has 4 divisors (see below), whose sum is σ = 2281804636. Its totient is φ = 2281517280.

The previous prime is 2281660951. The next prime is 2281660963. The reversal of 2281660957 is 7590661822.

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

It is an interprime number because it is at equal distance from previous prime (2281660951) and next prime (2281660963).

It can be written as a sum of positive squares in 2 ways, for example, as 1958416516 + 323244441 = 44254^2 + 17979^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2281660957 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 (2281660951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44568 + ... + 80929.

It is an arithmetic number, because the mean of its divisors is an integer number (570451159).

Almost surely, 2^2281660957 is an apocalyptic number.

It is an amenable number.

2281660957 is a deficient number, since it is larger than the sum of its proper divisors (143679).

2281660957 is a wasteful number, since it uses less digits than its factorization.

2281660957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143678.

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 2281660957 is about 47766.7348371228. The cubic root of 2281660957 is about 1316.4884007189.

The spelling of 2281660957 in words is "two billion, two hundred eighty-one million, six hundred sixty thousand, nine hundred fifty-seven".