149573471 has 2 divisors, whose sum is σ = 149573472. Its totient is φ = 149573470.

The previous prime is 149573447. The next prime is 149573477. The reversal of 149573471 is 174375941.

It is a strong prime.

It is an emirp because it is prime and its reverse (174375941) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 149573471 - 2¹⁴ = 149557087 is a prime.

It is a super-3 number, since 3×149573471³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149573477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74786735 + 74786736.

It is an arithmetic number, because the mean of its divisors is an integer number (74786736).

Almost surely, 2^149573471 is an apocalyptic number.

149573471 is a deficient number, since it is larger than the sum of its proper divisors (1).

149573471 is an equidigital number, since it uses as much as digits as its factorization.

149573471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 105840, while the sum is 41.

The square root of 149573471 is about 12230.0233442132. The cubic root of 149573471 is about 530.8251901571.

The spelling of 149573471 in words is "one hundred forty-nine million, five hundred seventy-three thousand, four hundred seventy-one".