149152171 has 8 divisors (see below), whose sum is σ = 177871104. Its totient is φ = 122286120.

The previous prime is 149152153. The next prime is 149152181. The reversal of 149152171 is 171251941.

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 149152171 - 2¹³ = 149143979 is a prime.

It is a super-2 number, since 2×149152171² = 44492740228026482, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149152121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 463045 + ... + 463366.

It is an arithmetic number, because the mean of its divisors is an integer number (22233888).

Almost surely, 2^149152171 is an apocalyptic number.

149152171 is a deficient number, since it is larger than the sum of its proper divisors (28718933).

149152171 is an equidigital number, since it uses as much as digits as its factorization.

149152171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 926441.

The product of its digits is 2520, while the sum is 31.

The square root of 149152171 is about 12212.7871921196. The cubic root of 149152171 is about 530.3263339741.

The spelling of 149152171 in words is "one hundred forty-nine million, one hundred fifty-two thousand, one hundred seventy-one".