145552419 has 24 divisors (see below), whose sum is σ = 228048912. Its totient is φ = 89095680.

The previous prime is 145552399. The next prime is 145552427. The reversal of 145552419 is 914255541.

It is not a de Polignac number, because 145552419 - 2⁸ = 145552163 is a prime.

It is a super-2 number, since 2×145552419² = 42371013353503122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145552439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5329 + ... + 17874.

It is an arithmetic number, because the mean of its divisors is an integer number (9502038).

Almost surely, 2^145552419 is an apocalyptic number.

145552419 is a deficient number, since it is larger than the sum of its proper divisors (82496493).

145552419 is a wasteful number, since it uses less digits than its factorization.

145552419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23267 (or 23264 counting only the distinct ones).

The product of its digits is 36000, while the sum is 36.

The square root of 145552419 is about 12064.5107236058. The cubic root of 145552419 is about 526.0251100024.

The spelling of 145552419 in words is "one hundred forty-five million, five hundred fifty-two thousand, four hundred nineteen".