145715814 has 16 divisors (see below), whose sum is σ = 323813040. Its totient is φ = 48571920.

The previous prime is 145715809. The next prime is 145715819. The reversal of 145715814 is 418517541.

145715814 is a `hidden beast` number, since 1 + 4 + 5 + 71 + 581 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (145715809) and next prime (145715819).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145715819) 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, 1349167 + ... + 1349274.

It is an arithmetic number, because the mean of its divisors is an integer number (20238315).

Almost surely, 2^145715814 is an apocalyptic number.

145715814 is an abundant number, since it is smaller than the sum of its proper divisors (178097226).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145715814 is a wasteful number, since it uses less digits than its factorization.

145715814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2698452 (or 2698446 counting only the distinct ones).

The product of its digits is 22400, while the sum is 36.

The square root of 145715814 is about 12071.2805451617. The cubic root of 145715814 is about 526.2218724047.

It can be divided in two parts, 1457 and 15814, that added together give a palindrome (17271).

The spelling of 145715814 in words is "one hundred forty-five million, seven hundred fifteen thousand, eight hundred fourteen".