145212911 has 8 divisors (see below), whose sum is σ = 146720064. Its totient is φ = 143713440.

The previous prime is 145212833. The next prime is 145212923. The reversal of 145212911 is 119212541.

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 145212911 - 2¹⁰ = 145211887 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 (145212211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40841 + ... + 44253.

It is an arithmetic number, because the mean of its divisors is an integer number (18340008).

Almost surely, 2^145212911 is an apocalyptic number.

145212911 is a deficient number, since it is larger than the sum of its proper divisors (1507153).

145212911 is a wasteful number, since it uses less digits than its factorization.

145212911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3841.

The product of its digits is 720, while the sum is 26.

The square root of 145212911 is about 12050.4319839581. The cubic root of 145212911 is about 525.6157986563.

The spelling of 145212911 in words is "one hundred forty-five million, two hundred twelve thousand, nine hundred eleven".