145793146 has 4 divisors (see below), whose sum is σ = 218689722. Its totient is φ = 72896572.

The previous prime is 145793129. The next prime is 145793149. The reversal of 145793146 is 641397541.

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

It can be written as a sum of positive squares in only one way, i.e., 144937521 + 855625 = 12039^2 + 925^2 .

It is a junction number, because it is equal to n+sod(n) for n = 145793099 and 145793108.

It is not an unprimeable number, because it can be changed into a prime (145793149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36448285 + ... + 36448288.

Almost surely, 2^145793146 is an apocalyptic number.

145793146 is a deficient number, since it is larger than the sum of its proper divisors (72896576).

145793146 is an equidigital number, since it uses as much as digits as its factorization.

145793146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72896575.

The product of its digits is 90720, while the sum is 40.

The square root of 145793146 is about 12074.4832601648. The cubic root of 145793146 is about 526.3149453344.

The spelling of 145793146 in words is "one hundred forty-five million, seven hundred ninety-three thousand, one hundred forty-six".