145224075640 has 32 divisors (see below), whose sum is σ = 373433338080. Its totient is φ = 49791111552.

The previous prime is 145224075637. The next prime is 145224075671. The reversal of 145224075640 is 46570422541.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 145224075593 and 145224075602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 259328427 + ... + 259328986.

It is an arithmetic number, because the mean of its divisors is an integer number (11669791815).

Almost surely, 2^145224075640 is an apocalyptic number.

145224075640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145224075640 is an abundant number, since it is smaller than the sum of its proper divisors (228209262440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145224075640 is a wasteful number, since it uses less digits than its factorization.

145224075640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518657431 (or 518657427 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 40.

The spelling of 145224075640 in words is "one hundred forty-five billion, two hundred twenty-four million, seventy-five thousand, six hundred forty".