145216604 has 24 divisors (see below), whose sum is σ = 277768848. Its totient is φ = 66021120.

The previous prime is 145216597. The next prime is 145216607. The reversal of 145216604 is 406612541.

145216604 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145216607) 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, 17357 + ... + 24324.

It is an arithmetic number, because the mean of its divisors is an integer number (11573702).

Almost surely, 2^145216604 is an apocalyptic number.

It is an amenable number.

145216604 is a deficient number, since it is larger than the sum of its proper divisors (132552244).

145216604 is a wasteful number, since it uses less digits than its factorization.

145216604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41765 (or 41763 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 145216604 is about 12050.5852140052. The cubic root of 145216604 is about 525.6202543728.

The spelling of 145216604 in words is "one hundred forty-five million, two hundred sixteen thousand, six hundred four".