2281072155 has 16 divisors (see below), whose sum is σ = 3864405024. Its totient is φ = 1145008640.

The previous prime is 2281072133. The next prime is 2281072159. The reversal of 2281072155 is 5512701822.

It is not a de Polignac number, because 2281072155 - 2⁸ = 2281071899 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2281072159) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4472436 + ... + 4472945.

It is an arithmetic number, because the mean of its divisors is an integer number (241525314).

Almost surely, 2^2281072155 is an apocalyptic number.

2281072155 is a deficient number, since it is larger than the sum of its proper divisors (1583332869).

2281072155 is a wasteful number, since it uses less digits than its factorization.

2281072155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8945406.

The product of its (nonzero) digits is 11200, while the sum is 33.

The square root of 2281072155 is about 47760.5711335197. The cubic root of 2281072155 is about 1316.3751473031.

Adding to 2281072155 its reverse (5512701822), we get a palindrome (7793773977).

The spelling of 2281072155 in words is "two billion, two hundred eighty-one million, seventy-two thousand, one hundred fifty-five".