145245042446 has 16 divisors (see below), whose sum is σ = 249119301600. Its totient is φ = 62215925280.

The previous prime is 145245042413. The next prime is 145245042487. The reversal of 145245042446 is 644240542541.

145245042446 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×145245042446³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2634245 + ... + 2688816.

It is an arithmetic number, because the mean of its divisors is an integer number (15569956350).

Almost surely, 2^145245042446 is an apocalyptic number.

145245042446 is a deficient number, since it is larger than the sum of its proper divisors (103874259154).

145245042446 is a wasteful number, since it uses less digits than its factorization.

145245042446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5325019.

The product of its (nonzero) digits is 614400, while the sum is 41.

Adding to 145245042446 its reverse (644240542541), we get a palindrome (789485584987).

The spelling of 145245042446 in words is "one hundred forty-five billion, two hundred forty-five million, forty-two thousand, four hundred forty-six".