145521602 has 8 divisors (see below), whose sum is σ = 219853200. Its totient is φ = 72237204.

The previous prime is 145521601. The next prime is 145521611. The reversal of 145521602 is 206125541.

145521602 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (145521601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 261452 + ... + 262007.

It is an arithmetic number, because the mean of its divisors is an integer number (27481650).

Almost surely, 2^145521602 is an apocalyptic number.

145521602 is a deficient number, since it is larger than the sum of its proper divisors (74331598).

145521602 is a wasteful number, since it uses less digits than its factorization.

145521602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523600.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 145521602 is about 12063.2334802904. The cubic root of 145521602 is about 525.9879832634.

The spelling of 145521602 in words is "one hundred forty-five million, five hundred twenty-one thousand, six hundred two".