149171105 has 8 divisors (see below), whose sum is σ = 179579112. Its totient is φ = 118954368.

The previous prime is 149171081. The next prime is 149171119. The reversal of 149171105 is 501171941.

It can be written as a sum of positive squares in 4 ways, for example, as 7656289 + 141514816 = 2767^2 + 11896^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 149171105 - 2⁸ = 149170849 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46094 + ... + 49223.

It is an arithmetic number, because the mean of its divisors is an integer number (22447389).

Almost surely, 2^149171105 is an apocalyptic number.

It is an amenable number.

149171105 is a deficient number, since it is larger than the sum of its proper divisors (30408007).

149171105 is an equidigital number, since it uses as much as digits as its factorization.

149171105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95635.

The product of its (nonzero) digits is 1260, while the sum is 29.

The square root of 149171105 is about 12213.5623386463. The cubic root of 149171105 is about 530.3487736385.

The spelling of 149171105 in words is "one hundred forty-nine million, one hundred seventy-one thousand, one hundred five".