145405515244 has 12 divisors (see below), whose sum is σ = 277592347368. Its totient is φ = 66093416000.

The previous prime is 145405515179. The next prime is 145405515253. The reversal of 145405515244 is 442515504541.

145405515244 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-2 number, since 2×145405515244² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 145405515197 and 145405515206.

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 3 ways as a sum of consecutive naturals, for example, 1652335357 + ... + 1652335444.

It is an arithmetic number, because the mean of its divisors is an integer number (23132695614).

Almost surely, 2^145405515244 is an apocalyptic number.

It is an amenable number.

145405515244 is a deficient number, since it is larger than the sum of its proper divisors (132186832124).

145405515244 is a wasteful number, since it uses less digits than its factorization.

145405515244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3304670816 (or 3304670814 counting only the distinct ones).

The product of its (nonzero) digits is 320000, while the sum is 40.

The spelling of 145405515244 in words is "one hundred forty-five billion, four hundred five million, five hundred fifteen thousand, two hundred forty-four".