145046345 has 4 divisors (see below), whose sum is σ = 174055620. Its totient is φ = 116037072.

The previous prime is 145046339. The next prime is 145046359. The reversal of 145046345 is 543640541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 543640541 = 383 ⋅1419427.

It can be written as a sum of positive squares in 2 ways, for example, as 84143929 + 60902416 = 9173^2 + 7804^2 .

It is a cyclic number.

It is not a de Polignac number, because 145046345 - 2⁶ = 145046281 is a prime.

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 in 3 ways as a sum of consecutive naturals, for example, 14504630 + ... + 14504639.

It is an arithmetic number, because the mean of its divisors is an integer number (43513905).

Almost surely, 2^145046345 is an apocalyptic number.

It is an amenable number.

145046345 is a deficient number, since it is larger than the sum of its proper divisors (29009275).

145046345 is an equidigital number, since it uses as much as digits as its factorization.

145046345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29009274.

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 145046345 is about 12043.5187964315. The cubic root of 145046345 is about 525.4147531331.

Adding to 145046345 its reverse (543640541), we get a palindrome (688686886).

The spelling of 145046345 in words is "one hundred forty-five million, forty-six thousand, three hundred forty-five".