1612321241 has 4 divisors (see below), whose sum is σ = 1630437300. Its totient is φ = 1594205184.

The previous prime is 1612321219. The next prime is 1612321267. The reversal of 1612321241 is 1421232161.

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

It can be written as a sum of positive squares in 2 ways, for example, as 717114841 + 895206400 = 26779^2 + 29920^2 .

It is a cyclic number.

It is not a de Polignac number, because 1612321241 - 2¹⁴ = 1612304857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1612321211) 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, 9057896 + ... + 9058073.

It is an arithmetic number, because the mean of its divisors is an integer number (407609325).

Almost surely, 2^1612321241 is an apocalyptic number.

It is an amenable number.

1612321241 is a deficient number, since it is larger than the sum of its proper divisors (18116059).

1612321241 is an equidigital number, since it uses as much as digits as its factorization.

1612321241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18116058.

The product of its digits is 576, while the sum is 23.

The square root of 1612321241 is about 40153.7201389859. The cubic root of 1612321241 is about 1172.6017153603.

The spelling of 1612321241 in words is "one billion, six hundred twelve million, three hundred twenty-one thousand, two hundred forty-one".