145215840532 has 24 divisors (see below), whose sum is σ = 291699954560. Its totient is φ = 61963587360.

The previous prime is 145215840521. The next prime is 145215840551. The reversal of 145215840532 is 235048512541.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11317344 + ... + 11330167.

Almost surely, 2^145215840532 is an apocalyptic number.

It is an amenable number.

145215840532 is an abundant number, since it is smaller than the sum of its proper divisors (146484114028).

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

145215840532 is a wasteful number, since it uses less digits than its factorization.

145215840532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22647751 (or 22647749 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 40.

The spelling of 145215840532 in words is "one hundred forty-five billion, two hundred fifteen million, eight hundred forty thousand, five hundred thirty-two".