1213044673 has 8 divisors (see below), whose sum is σ = 1294207200. Its totient is φ = 1132971840.

The previous prime is 1213044671. The next prime is 1213044713. The reversal of 1213044673 is 3764403121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1213044673 - 2¹ = 1213044671 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1213044671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 270123 + ... + 274576.

It is an arithmetic number, because the mean of its divisors is an integer number (161775900).

Almost surely, 2^1213044673 is an apocalyptic number.

It is an amenable number.

1213044673 is a deficient number, since it is larger than the sum of its proper divisors (81162527).

1213044673 is a wasteful number, since it uses less digits than its factorization.

1213044673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544847.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 1213044673 is about 34828.7908633073. The cubic root of 1213044673 is about 1066.4952651132.

Adding to 1213044673 its reverse (3764403121), we get a palindrome (4977447794).

The spelling of 1213044673 in words is "one billion, two hundred thirteen million, forty-four thousand, six hundred seventy-three".