145205103611 has 4 divisors (see below), whose sum is σ = 153746580312. Its totient is φ = 136663626912.

The previous prime is 145205103599. The next prime is 145205103623. The reversal of 145205103611 is 116301502541.

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

It is an interprime number because it is at equal distance from previous prime (145205103599) and next prime (145205103623).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145205103611 is a prime.

It is a super-2 number, since 2×145205103611² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145205100611) 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, 4270738325 + ... + 4270738358.

It is an arithmetic number, because the mean of its divisors is an integer number (38436645078).

Almost surely, 2^145205103611 is an apocalyptic number.

145205103611 is a deficient number, since it is larger than the sum of its proper divisors (8541476701).

145205103611 is an equidigital number, since it uses as much as digits as its factorization.

145205103611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8541476700.

The product of its (nonzero) digits is 3600, while the sum is 29.

The spelling of 145205103611 in words is "one hundred forty-five billion, two hundred five million, one hundred three thousand, six hundred eleven".