145616390 has 16 divisors (see below), whose sum is σ = 277528032. Its totient is φ = 54820224.

The previous prime is 145616389. The next prime is 145616417. The reversal of 145616390 is 93616541.

145616390 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 145616390.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 428114 + ... + 428453.

It is an arithmetic number, because the mean of its divisors is an integer number (17345502).

Almost surely, 2^145616390 is an apocalyptic number.

145616390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145616390 is a deficient number, since it is larger than the sum of its proper divisors (131911642).

145616390 is a wasteful number, since it uses less digits than its factorization.

145616390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 856591.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 145616390 is about 12067.1616380987. The cubic root of 145616390 is about 526.1021622513.

The spelling of 145616390 in words is "one hundred forty-five million, six hundred sixteen thousand, three hundred ninety".