145304807 has 4 divisors (see below), whose sum is σ = 146414136. Its totient is φ = 144195480.

The previous prime is 145304801. The next prime is 145304813. The reversal of 145304807 is 708403541.

145304807 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 708403541 = 17183 ⋅41227.

It is an interprime number because it is at equal distance from previous prime (145304801) and next prime (145304813).

It is a cyclic number.

It is not a de Polignac number, because 145304807 - 2⁴ = 145304791 is a prime.

It is a super-2 number, since 2×145304807² = 42226973874614498, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145304801) 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, 554468 + ... + 554729.

It is an arithmetic number, because the mean of its divisors is an integer number (36603534).

Almost surely, 2^145304807 is an apocalyptic number.

145304807 is a deficient number, since it is larger than the sum of its proper divisors (1109329).

145304807 is a wasteful number, since it uses less digits than its factorization.

145304807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1109328.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 145304807 is about 12054.2443562423. The cubic root of 145304807 is about 525.7266515265.

The spelling of 145304807 in words is "one hundred forty-five million, three hundred four thousand, eight hundred seven".