145293071471 has 8 divisors (see below), whose sum is σ = 156742359984. Its totient is φ = 134166298240.

The previous prime is 145293071447. The next prime is 145293071479. The reversal of 145293071471 is 174170392541.

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 145293071471 - 2³⁰ = 144219329647 is a prime.

It is a super-3 number, since 3×145293071471³ (a number of 34 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 (145293071479) 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 in 7 ways as a sum of consecutive naturals, for example, 80627885 + ... + 80629686.

It is an arithmetic number, because the mean of its divisors is an integer number (19592794998).

Almost surely, 2^145293071471 is an apocalyptic number.

145293071471 is a deficient number, since it is larger than the sum of its proper divisors (11449288513).

145293071471 is a wasteful number, since it uses less digits than its factorization.

145293071471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161257641.

The product of its (nonzero) digits is 211680, while the sum is 44.

The spelling of 145293071471 in words is "one hundred forty-five billion, two hundred ninety-three million, seventy-one thousand, four hundred seventy-one".