145434175217 has 8 divisors (see below), whose sum is σ = 150193509120. Its totient is φ = 140679085680.

The previous prime is 145434175181. The next prime is 145434175231. The reversal of 145434175217 is 712571434541.

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 145434175217 - 2²⁶ = 145367066353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145434175267) 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, 991367 + ... + 1128572.

It is an arithmetic number, because the mean of its divisors is an integer number (18774188640).

Almost surely, 2^145434175217 is an apocalyptic number.

It is an amenable number.

145434175217 is a deficient number, since it is larger than the sum of its proper divisors (4759333903).

145434175217 is a wasteful number, since it uses less digits than its factorization.

145434175217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2122183.

The product of its digits is 470400, while the sum is 44.

The spelling of 145434175217 in words is "one hundred forty-five billion, four hundred thirty-four million, one hundred seventy-five thousand, two hundred seventeen".