145548911 has 4 divisors (see below), whose sum is σ = 153209400. Its totient is φ = 137888424.

The previous prime is 145548839. The next prime is 145548913. The reversal of 145548911 is 119845541.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 145548911 - 2²² = 141354607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145548913) 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, 3830216 + ... + 3830253.

It is an arithmetic number, because the mean of its divisors is an integer number (38302350).

Almost surely, 2^145548911 is an apocalyptic number.

145548911 is a deficient number, since it is larger than the sum of its proper divisors (7660489).

145548911 is an equidigital number, since it uses as much as digits as its factorization.

145548911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7660488.

The product of its digits is 28800, while the sum is 38.

The square root of 145548911 is about 12064.3653376379. The cubic root of 145548911 is about 526.0208840084.

The spelling of 145548911 in words is "one hundred forty-five million, five hundred forty-eight thousand, nine hundred eleven".