145544246 has 4 divisors (see below), whose sum is σ = 218316372. Its totient is φ = 72772122.

The previous prime is 145544239. The next prime is 145544251. The reversal of 145544246 is 642445541.

It is a semiprime because it is the product of two primes.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 36386060 + ... + 36386063.

It is an arithmetic number, because the mean of its divisors is an integer number (54579093).

Almost surely, 2^145544246 is an apocalyptic number.

145544246 is a deficient number, since it is larger than the sum of its proper divisors (72772126).

145544246 is an equidigital number, since it uses as much as digits as its factorization.

145544246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72772125.

The product of its digits is 76800, while the sum is 35.

The square root of 145544246 is about 12064.1719981108. The cubic root of 145544246 is about 526.0152641023.

Adding to 145544246 its reverse (642445541), we get a palindrome (787989787).

The spelling of 145544246 in words is "one hundred forty-five million, five hundred forty-four thousand, two hundred forty-six".