145715306 has 8 divisors (see below), whose sum is σ = 238443264. Its totient is φ = 66234220.

The previous prime is 145715303. The next prime is 145715333. The reversal of 145715306 is 603517541.

145715306 is digitally balanced in base 2, because in such base 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 a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (145715303) 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, 3311690 + ... + 3311733.

It is an arithmetic number, because the mean of its divisors is an integer number (29805408).

Almost surely, 2^145715306 is an apocalyptic number.

145715306 is a deficient number, since it is larger than the sum of its proper divisors (92727958).

145715306 is a wasteful number, since it uses less digits than its factorization.

145715306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6623436.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 145715306 is about 12071.2595034652. The cubic root of 145715306 is about 526.2212608924.

The spelling of 145715306 in words is "one hundred forty-five million, seven hundred fifteen thousand, three hundred six".