145040249045 has 4 divisors (see below), whose sum is σ = 174048298860. Its totient is φ = 116032199232.

The previous prime is 145040249017. The next prime is 145040249087. The reversal of 145040249045 is 540942040541.

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

It can be written as a sum of positive squares in 2 ways, for example, as 58273477201 + 86766771844 = 241399^2 + 294562^2 .

It is a cyclic number.

It is not a de Polignac number, because 145040249045 - 2¹⁰ = 145040248021 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14504024900 + ... + 14504024909.

It is an arithmetic number, because the mean of its divisors is an integer number (43512074715).

Almost surely, 2^145040249045 is an apocalyptic number.

It is an amenable number.

145040249045 is a deficient number, since it is larger than the sum of its proper divisors (29008049815).

145040249045 is an equidigital number, since it uses as much as digits as its factorization.

145040249045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29008049814.

The product of its (nonzero) digits is 115200, while the sum is 38.

Adding to 145040249045 its reverse (540942040541), we get a palindrome (685982289586).

The spelling of 145040249045 in words is "one hundred forty-five billion, forty million, two hundred forty-nine thousand, forty-five".