145717715 has 48 divisors (see below), whose sum is σ = 210763296. Its totient is φ = 95846400.

The previous prime is 145717703. The next prime is 145717753. The reversal of 145717715 is 517717541.

It is not a de Polignac number, because 145717715 - 2⁸ = 145717459 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 566867 + ... + 567123.

It is an arithmetic number, because the mean of its divisors is an integer number (4390902).

Almost surely, 2^145717715 is an apocalyptic number.

145717715 is a deficient number, since it is larger than the sum of its proper divisors (65045581).

145717715 is a wasteful number, since it uses less digits than its factorization.

145717715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360 (or 347 counting only the distinct ones).

The product of its digits is 34300, while the sum is 38.

The square root of 145717715 is about 12071.3592855154. The cubic root of 145717715 is about 526.2241607480.

The spelling of 145717715 in words is "one hundred forty-five million, seven hundred seventeen thousand, seven hundred fifteen".