145221040604 has 24 divisors (see below), whose sum is σ = 254471156688. Its totient is φ = 72515047680.

The previous prime is 145221040603. The next prime is 145221040637. The reversal of 145221040604 is 406040122541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145221040603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23206244 + ... + 23212500.

It is an arithmetic number, because the mean of its divisors is an integer number (10602964862).

Almost surely, 2^145221040604 is an apocalyptic number.

It is an amenable number.

145221040604 is a deficient number, since it is larger than the sum of its proper divisors (109250116084).

145221040604 is a wasteful number, since it uses less digits than its factorization.

145221040604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12965 (or 12963 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

The spelling of 145221040604 in words is "one hundred forty-five billion, two hundred twenty-one million, forty thousand, six hundred four".