145354815 has 48 divisors (see below), whose sum is σ = 269118720. Its totient is φ = 72414720.

The previous prime is 145354813. The next prime is 145354817. The reversal of 145354815 is 518453541.

145354815 is a `hidden beast` number, since 145 + 35 + 481 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (145354813) and next prime (145354817).

It is not a de Polignac number, because 145354815 - 2¹ = 145354813 is a prime.

It is a super-2 number, since 2×145354815² = 42256044487368450, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 145354815.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145354813) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 38659 + ... + 42251.

It is an arithmetic number, because the mean of its divisors is an integer number (5606640).

Almost surely, 2^145354815 is an apocalyptic number.

145354815 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

145354815 is a deficient number, since it is larger than the sum of its proper divisors (123763905).

145354815 is a wasteful number, since it uses less digits than its factorization.

145354815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3664 (or 3661 counting only the distinct ones).

The product of its digits is 48000, while the sum is 36.

The square root of 145354815 is about 12056.3184679238. The cubic root of 145354815 is about 525.7869558469.

The spelling of 145354815 in words is "one hundred forty-five million, three hundred fifty-four thousand, eight hundred fifteen".