1673226121 has 4 divisors (see below), whose sum is σ = 1912258432. Its totient is φ = 1434193812.

The previous prime is 1673226119. The next prime is 1673226131. The reversal of 1673226121 is 1216223761.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1673226121 - 2¹ = 1673226119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1673226101) 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, 119516145 + ... + 119516158.

It is an arithmetic number, because the mean of its divisors is an integer number (478064608).

Almost surely, 2^1673226121 is an apocalyptic number.

It is an amenable number.

1673226121 is a deficient number, since it is larger than the sum of its proper divisors (239032311).

1673226121 is an equidigital number, since it uses as much as digits as its factorization.

1673226121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239032310.

The product of its digits is 6048, while the sum is 31.

The square root of 1673226121 is about 40905.0867374707. The cubic root of 1673226121 is about 1187.1844840204.

Adding to 1673226121 its reverse (1216223761), we get a palindrome (2889449882).

The spelling of 1673226121 in words is "one billion, six hundred seventy-three million, two hundred twenty-six thousand, one hundred twenty-one".