149216471 has 2 divisors, whose sum is σ = 149216472. Its totient is φ = 149216470.

The previous prime is 149216461. The next prime is 149216489. The reversal of 149216471 is 174612941.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 149216471 - 2¹⁴ = 149200087 is a prime.

It is a super-3 number, since 3×149216471³ (a number of 25 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149216461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74608235 + 74608236.

It is an arithmetic number, because the mean of its divisors is an integer number (74608236).

Almost surely, 2^149216471 is an apocalyptic number.

149216471 is a deficient number, since it is larger than the sum of its proper divisors (1).

149216471 is an equidigital number, since it uses as much as digits as its factorization.

149216471 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 35.

The square root of 149216471 is about 12215.4193951743. The cubic root of 149216471 is about 530.4025315112.

The spelling of 149216471 in words is "one hundred forty-nine million, two hundred sixteen thousand, four hundred seventy-one".