1611325441 has 4 divisors (see below), whose sum is σ = 1757809584. Its totient is φ = 1464841300.

The previous prime is 1611325427. The next prime is 1611325453. The reversal of 1611325441 is 1445231161.

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 1611325441 - 2⁹ = 1611324929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1611325141) 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, 73242055 + ... + 73242076.

It is an arithmetic number, because the mean of its divisors is an integer number (439452396).

Almost surely, 2^1611325441 is an apocalyptic number.

1611325441 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1611325441 is a deficient number, since it is larger than the sum of its proper divisors (146484143).

1611325441 is a wasteful number, since it uses less digits than its factorization.

1611325441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146484142.

The product of its digits is 2880, while the sum is 28.

The square root of 1611325441 is about 40141.3183764559. The cubic root of 1611325441 is about 1172.3602586675.

The spelling of 1611325441 in words is "one billion, six hundred eleven million, three hundred twenty-five thousand, four hundred forty-one".