145040135230456 has 128 divisors (see below), whose sum is σ = 286847827200000. Its totient is φ = 68655442673664.

The previous prime is 145040135230447. The next prime is 145040135230513. The reversal of 145040135230456 is 654032531040541.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9989670765 + ... + 9989685283.

It is an arithmetic number, because the mean of its divisors is an integer number (2240998650000).

Almost surely, 2^{145040135230456} is an apocalyptic number.

It is an amenable number.

145040135230456 is a deficient number, since it is larger than the sum of its proper divisors (141807691969544).

145040135230456 is a wasteful number, since it uses less digits than its factorization.

145040135230456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17549 (or 17545 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 43.

Adding to 145040135230456 its reverse (654032531040541), we get a palindrome (799072666270997).

The spelling of 145040135230456 in words is "one hundred forty-five trillion, forty billion, one hundred thirty-five million, two hundred thirty thousand, four hundred fifty-six".