145191766 has 8 divisors (see below), whose sum is σ = 218574720. Its totient is φ = 72333528.

The previous prime is 145191763. The next prime is 145191769. The reversal of 145191766 is 667191541.

It is an interprime number because it is at equal distance from previous prime (145191763) and next prime (145191769).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145191763) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130486 + ... + 131593.

It is an arithmetic number, because the mean of its divisors is an integer number (27321840).

Almost surely, 2^145191766 is an apocalyptic number.

145191766 is a deficient number, since it is larger than the sum of its proper divisors (73382954).

145191766 is a wasteful number, since it uses less digits than its factorization.

145191766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262358.

The product of its digits is 45360, while the sum is 40.

The square root of 145191766 is about 12049.5545975775. The cubic root of 145191766 is about 525.5902851178.

The spelling of 145191766 in words is "one hundred forty-five million, one hundred ninety-one thousand, seven hundred sixty-six".