145180471 has 8 divisors (see below), whose sum is σ = 150441984. Its totient is φ = 139955160.

The previous prime is 145180423. The next prime is 145180481. The reversal of 145180471 is 174081541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145180471 is a prime.

It is a super-3 number, since 3×145180471³ (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145180421) 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, 751 + ... + 17056.

It is an arithmetic number, because the mean of its divisors is an integer number (18805248).

Almost surely, 2^145180471 is an apocalyptic number.

145180471 is a deficient number, since it is larger than the sum of its proper divisors (5261513).

145180471 is a wasteful number, since it uses less digits than its factorization.

145180471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18101.

The product of its (nonzero) digits is 4480, while the sum is 31.

The square root of 145180471 is about 12049.0858989386. The cubic root of 145180471 is about 525.5766555657.

The spelling of 145180471 in words is "one hundred forty-five million, one hundred eighty thousand, four hundred seventy-one".