145115211 has 8 divisors (see below), whose sum is σ = 201899520. Its totient is φ = 92537192.

The previous prime is 145115209. The next prime is 145115227. The reversal of 145115211 is 112511541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 145115211 - 2¹ = 145115209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145115231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1051491 + ... + 1051628.

It is an arithmetic number, because the mean of its divisors is an integer number (25237440).

Almost surely, 2^145115211 is an apocalyptic number.

145115211 is a deficient number, since it is larger than the sum of its proper divisors (56784309).

145115211 is a wasteful number, since it uses less digits than its factorization.

145115211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2103145.

The product of its digits is 200, while the sum is 21.

The square root of 145115211 is about 12046.3775052918. The cubic root of 145115211 is about 525.4978931976.

Adding to 145115211 its reverse (112511541), we get a palindrome (257626752).

The spelling of 145115211 in words is "one hundred forty-five million, one hundred fifteen thousand, two hundred eleven".