2281073138 has 8 divisors (see below), whose sum is σ = 3433787100. Its totient is φ = 1136477440.

The previous prime is 2281073129. The next prime is 2281073143. The reversal of 2281073138 is 8313701822.

It can be written as a sum of positive squares in 2 ways, for example, as 2194266649 + 86806489 = 46843^2 + 9317^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 2281073098 and 2281073107.

It is an unprimeable number.

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, 2028863 + ... + 2029986.

Almost surely, 2^2281073138 is an apocalyptic number.

2281073138 is a deficient number, since it is larger than the sum of its proper divisors (1152713962).

2281073138 is a wasteful number, since it uses less digits than its factorization.

2281073138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4059132.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 2281073138 is about 47760.5814244341. The cubic root of 2281073138 is about 1316.3753363950.

The spelling of 2281073138 in words is "two billion, two hundred eighty-one million, seventy-three thousand, one hundred thirty-eight".