145215544040 has 32 divisors (see below), whose sum is σ = 373411399680. Its totient is φ = 49788186432.

The previous prime is 145215544009. The next prime is 145215544043. The reversal of 145215544040 is 40445512541.

145215544040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is not an unprimeable number, because it can be changed into a prime (145215544043) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 259313192 + ... + 259313751.

It is an arithmetic number, because the mean of its divisors is an integer number (11669106240).

Almost surely, 2^145215544040 is an apocalyptic number.

145215544040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145215544040 is an abundant number, since it is smaller than the sum of its proper divisors (228195855640).

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

145215544040 is a wasteful number, since it uses less digits than its factorization.

145215544040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518626961 (or 518626957 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 35.

The spelling of 145215544040 in words is "one hundred forty-five billion, two hundred fifteen million, five hundred forty-four thousand, forty".