1612601121 has 16 divisors (see below), whose sum is σ = 2220576768. Its totient is φ = 1039880400.

The previous prime is 1612601119. The next prime is 1612601141. The reversal of 1612601121 is 1211062161.

It is not a de Polignac number, because 1612601121 - 2¹ = 1612601119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1612601101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 322180 + ... + 327146.

It is an arithmetic number, because the mean of its divisors is an integer number (138786048).

Almost surely, 2^1612601121 is an apocalyptic number.

It is an amenable number.

1612601121 is a deficient number, since it is larger than the sum of its proper divisors (607975647).

1612601121 is a wasteful number, since it uses less digits than its factorization.

1612601121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8492.

The product of its (nonzero) digits is 144, while the sum is 21.

The square root of 1612601121 is about 40157.2050944784. The cubic root of 1612601121 is about 1172.6695613891.

Adding to 1612601121 its reverse (1211062161), we get a palindrome (2823663282).

The spelling of 1612601121 in words is "one billion, six hundred twelve million, six hundred one thousand, one hundred twenty-one".