149146171 has 2 divisors, whose sum is σ = 149146172. Its totient is φ = 149146170.

The previous prime is 149146157. The next prime is 149146211. The reversal of 149146171 is 171641941.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 149146171 - 2¹³ = 149137979 is a prime.

It is a super-2 number, since 2×149146171² = 44489160647922482, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (149146121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74573085 + 74573086.

It is an arithmetic number, because the mean of its divisors is an integer number (74573086).

Almost surely, 2^149146171 is an apocalyptic number.

149146171 is a deficient number, since it is larger than the sum of its proper divisors (1).

149146171 is an equidigital number, since it uses as much as digits as its factorization.

149146171 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6048, while the sum is 34.

The square root of 149146171 is about 12212.5415454769. The cubic root of 149146171 is about 530.3192226671.

The spelling of 149146171 in words is "one hundred forty-nine million, one hundred forty-six thousand, one hundred seventy-one".