145171826 has 8 divisors (see below), whose sum is σ = 221327724. Its totient is φ = 71395920.

The previous prime is 145171813. The next prime is 145171867. The reversal of 145171826 is 628171541.

It can be written as a sum of positive squares in 2 ways, for example, as 104019601 + 41152225 = 10199^2 + 6415^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 594845 + ... + 595088.

Almost surely, 2^145171826 is an apocalyptic number.

145171826 is a deficient number, since it is larger than the sum of its proper divisors (76155898).

145171826 is a wasteful number, since it uses less digits than its factorization.

145171826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1189996.

The product of its digits is 13440, while the sum is 35.

The square root of 145171826 is about 12048.7271526913. The cubic root of 145171826 is about 525.5662232618.

The spelling of 145171826 in words is "one hundred forty-five million, one hundred seventy-one thousand, eight hundred twenty-six".