145874471 has 8 divisors (see below), whose sum is σ = 148955040. Its totient is φ = 142826112.

The previous prime is 145874453. The next prime is 145874473. The reversal of 145874471 is 174478541.

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 145874471 - 2¹⁴ = 145858087 is a prime.

It is a super-3 number, since 3×145874471³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145874473) 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, 1211 + ... + 17123.

It is an arithmetic number, because the mean of its divisors is an integer number (18619380).

Almost surely, 2^145874471 is an apocalyptic number.

145874471 is a deficient number, since it is larger than the sum of its proper divisors (3080569).

145874471 is a wasteful number, since it uses less digits than its factorization.

145874471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16105.

The product of its digits is 125440, while the sum is 41.

The square root of 145874471 is about 12077.8504296087. The cubic root of 145874471 is about 526.4127885413.

The spelling of 145874471 in words is "one hundred forty-five million, eight hundred seventy-four thousand, four hundred seventy-one".