145212043 has 4 divisors (see below), whose sum is σ = 146649888. Its totient is φ = 143774200.

The previous prime is 145211993. The next prime is 145212047. The reversal of 145212043 is 340212541.

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 145212043 - 2⁹ = 145211531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145212047) 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 3 ways as a sum of consecutive naturals, for example, 718771 + ... + 718972.

It is an arithmetic number, because the mean of its divisors is an integer number (36662472).

Almost surely, 2^145212043 is an apocalyptic number.

145212043 is a deficient number, since it is larger than the sum of its proper divisors (1437845).

145212043 is a wasteful number, since it uses less digits than its factorization.

145212043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1437844.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 145212043 is about 12050.3959685979. The cubic root of 145212043 is about 525.6147513770.

Adding to 145212043 its reverse (340212541), we get a palindrome (485424584).

The spelling of 145212043 in words is "one hundred forty-five million, two hundred twelve thousand, forty-three".