1223447413045 has 72 divisors (see below), whose sum is σ = 1850211642888. Its totient is φ = 773020385280.

The previous prime is 1223447413039. The next prime is 1223447413051. The reversal of 1223447413045 is 5403147443221.

It is an interprime number because it is at equal distance from previous prime (1223447413039) and next prime (1223447413051).

It can be written as a sum of positive squares in 12 ways, for example, as 671111577796 + 552335835249 = 819214^2 + 743193^2 .

It is not a de Polignac number, because 1223447413045 - 2²⁵ = 1223413858613 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1223447412989 and 1223447413007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1386229 + ... + 2090101.

It is an arithmetic number, because the mean of its divisors is an integer number (25697383929).

Almost surely, 2^{1223447413045} is an apocalyptic number.

It is an amenable number.

1223447413045 is a deficient number, since it is larger than the sum of its proper divisors (626764229843).

1223447413045 is a wasteful number, since it uses less digits than its factorization.

1223447413045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703943 (or 703919 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 40.

The spelling of 1223447413045 in words is "one trillion, two hundred twenty-three billion, four hundred forty-seven million, four hundred thirteen thousand, forty-five".