145844093 has 8 divisors (see below), whose sum is σ = 149619960. Its totient is φ = 142078720.

The previous prime is 145844029. The next prime is 145844113. The reversal of 145844093 is 390448541.

It can be written as a sum of positive squares in 4 ways, for example, as 14122564 + 131721529 = 3758^2 + 11477^2 .

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 145844093 - 2⁶ = 145844029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145844593) 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, 30971 + ... + 35367.

It is an arithmetic number, because the mean of its divisors is an integer number (18702495).

Almost surely, 2^145844093 is an apocalyptic number.

It is an amenable number.

145844093 is a deficient number, since it is larger than the sum of its proper divisors (3775867).

145844093 is an equidigital number, since it uses as much as digits as its factorization.

145844093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5247.

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 145844093 is about 12076.5927727981. The cubic root of 145844093 is about 526.3762446147.

The spelling of 145844093 in words is "one hundred forty-five million, eight hundred forty-four thousand, ninety-three".