161634106 has 8 divisors (see below), whose sum is σ = 242604180. Its totient is φ = 80766048.

The previous prime is 161634103. The next prime is 161634131. The reversal of 161634106 is 601436161.

161634106 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 126765081 + 34869025 = 11259^2 + 5905^2 .

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

It is a super-2 number, since 2×161634106² = 52251168444838472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (161634103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21411 + ... + 27958.

Almost surely, 2^161634106 is an apocalyptic number.

161634106 is a deficient number, since it is larger than the sum of its proper divisors (80970074).

161634106 is a wasteful number, since it uses less digits than its factorization.

161634106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51008.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 161634106 is about 12713.5402622558. The cubic root of 161634106 is about 544.7254527179.

The spelling of 161634106 in words is "one hundred sixty-one million, six hundred thirty-four thousand, one hundred six".