145443421532 has 6 divisors (see below), whose sum is σ = 254525987688. Its totient is φ = 72721710764.

The previous prime is 145443421451. The next prime is 145443421573. The reversal of 145443421532 is 235124344541.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18180427688 + ... + 18180427695.

It is an arithmetic number, because the mean of its divisors is an integer number (42420997948).

Almost surely, 2^145443421532 is an apocalyptic number.

It is an amenable number.

145443421532 is a deficient number, since it is larger than the sum of its proper divisors (109082566156).

145443421532 is a wasteful number, since it uses less digits than its factorization.

145443421532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36360855387 (or 36360855385 counting only the distinct ones).

The product of its digits is 230400, while the sum is 38.

The spelling of 145443421532 in words is "one hundred forty-five billion, four hundred forty-three million, four hundred twenty-one thousand, five hundred thirty-two".