1611059045 has 4 divisors (see below), whose sum is σ = 1933270860. Its totient is φ = 1288847232.

The previous prime is 1611059033. The next prime is 1611059053. The reversal of 1611059045 is 5409501161.

It is a Cunningham number, because it is equal to 40138²+1.

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 579942724 + 1031116321 = 24082^2 + 32111^2 .

It is a cyclic number.

It is not a de Polignac number, because 1611059045 - 2⁴ = 1611059029 is a prime.

It is a super-2 number, since 2×1611059045² = 5191022492952624050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161105900 + ... + 161105909.

It is an arithmetic number, because the mean of its divisors is an integer number (483317715).

Almost surely, 2^1611059045 is an apocalyptic number.

It is an amenable number.

1611059045 is a deficient number, since it is larger than the sum of its proper divisors (322211815).

1611059045 is an equidigital number, since it uses as much as digits as its factorization.

1611059045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322211814.

The product of its (nonzero) digits is 5400, while the sum is 32.

The square root of 1611059045 is about 40138.0000124570. Note that the first 4 decimals coincide. The cubic root of 1611059045 is about 1172.2956474085.

The spelling of 1611059045 in words is "one billion, six hundred eleven million, fifty-nine thousand, forty-five".