163261012 has 6 divisors (see below), whose sum is σ = 285706778. Its totient is φ = 81630504.

The previous prime is 163260989. The next prime is 163261073. The reversal of 163261012 is 210162361.

163261012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 156100036 + 7160976 = 12494^2 + 2676^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20407623 + ... + 20407630.

Almost surely, 2^163261012 is an apocalyptic number.

It is an amenable number.

163261012 is a deficient number, since it is larger than the sum of its proper divisors (122445766).

163261012 is a wasteful number, since it uses less digits than its factorization.

163261012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40815257 (or 40815255 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 163261012 is about 12777.3632647742. The cubic root of 163261012 is about 546.5469747540.

The spelling of 163261012 in words is "one hundred sixty-three million, two hundred sixty-one thousand, twelve".