149195671 has 4 divisors (see below), whose sum is σ = 149371432. Its totient is φ = 149019912.

The previous prime is 149195647. The next prime is 149195677. The reversal of 149195671 is 176591941.

It is a happy number.

149195671 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 149195671 - 2²³ = 140807063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149195677) 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, 86601 + ... + 88306.

It is an arithmetic number, because the mean of its divisors is an integer number (37342858).

Almost surely, 2^149195671 is an apocalyptic number.

149195671 is a deficient number, since it is larger than the sum of its proper divisors (175761).

149195671 is an equidigital number, since it uses as much as digits as its factorization.

149195671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175760.

The product of its digits is 68040, while the sum is 43.

The square root of 149195671 is about 12214.5679825363. The cubic root of 149195671 is about 530.3778852479.

The spelling of 149195671 in words is "one hundred forty-nine million, one hundred ninety-five thousand, six hundred seventy-one".