145975846 has 4 divisors (see below), whose sum is σ = 218963772. Its totient is φ = 72987922.

The previous prime is 145975831. The next prime is 145975849. The reversal of 145975846 is 648579541.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 648579541 = 547 ⋅1185703.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 145975846.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145975849) by changing a digit.

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 as a sum of consecutive naturals, namely, 36493960 + ... + 36493963.

It is an arithmetic number, because the mean of its divisors is an integer number (54740943).

Almost surely, 2^145975846 is an apocalyptic number.

145975846 is a deficient number, since it is larger than the sum of its proper divisors (72987926).

145975846 is an equidigital number, since it uses as much as digits as its factorization.

145975846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72987925.

The product of its digits is 1209600, while the sum is 49.

The square root of 145975846 is about 12082.0464326206. The cubic root of 145975846 is about 526.5347032690.

The spelling of 145975846 in words is "one hundred forty-five million, nine hundred seventy-five thousand, eight hundred forty-six".