145975845 has 16 divisors (see below), whose sum is σ = 233969472. Its totient is φ = 77717760.

The previous prime is 145975831. The next prime is 145975849. The reversal of 145975845 is 548579541.

It is a happy number.

It is not a de Polignac number, because 145975845 - 2⁵ = 145975813 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 145975794 and 145975803.

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 in 15 ways as a sum of consecutive naturals, for example, 690 + ... + 17100.

It is an arithmetic number, because the mean of its divisors is an integer number (14623092).

Almost surely, 2^145975845 is an apocalyptic number.

145975845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

145975845 is a deficient number, since it is larger than the sum of its proper divisors (87993627).

145975845 is a wasteful number, since it uses less digits than its factorization.

145975845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17012.

The product of its digits is 1008000, while the sum is 48.

The square root of 145975845 is about 12082.0463912369. The cubic root of 145975845 is about 526.5347020667.

The spelling of 145975845 in words is "one hundred forty-five million, nine hundred seventy-five thousand, eight hundred forty-five".