145212440611 has 4 divisors (see below), whose sum is σ = 165957074992. Its totient is φ = 124467806232.

The previous prime is 145212440599. The next prime is 145212440621. The reversal of 145212440611 is 116044212541.

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

It is not a de Polignac number, because 145212440611 - 2³⁵ = 110852702243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145212440621) 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, 10372317180 + ... + 10372317193.

It is an arithmetic number, because the mean of its divisors is an integer number (41489268748).

Almost surely, 2^145212440611 is an apocalyptic number.

145212440611 is a deficient number, since it is larger than the sum of its proper divisors (20744634381).

145212440611 is an equidigital number, since it uses as much as digits as its factorization.

145212440611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20744634380.

The product of its (nonzero) digits is 7680, while the sum is 31.

The spelling of 145212440611 in words is "one hundred forty-five billion, two hundred twelve million, four hundred forty thousand, six hundred eleven".