1611059043 has 64 divisors (see below), whose sum is σ = 2573544960. Its totient is φ = 885350400.

The previous prime is 1611059033. The next prime is 1611059053. The reversal of 1611059043 is 3409501161.

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

It is an interprime number because it is at equal distance from previous prime (1611059033) and next prime (1611059053).

It is not a de Polignac number, because 1611059043 - 2⁹ = 1611058531 is a prime.

It is a super-2 number, since 2×1611059043² = 5191022480064151698, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1611059043.

It is not an unprimeable number, because it can be changed into a prime (1611059003) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2046696 + ... + 2047482.

It is an arithmetic number, because the mean of its divisors is an integer number (40211640).

Almost surely, 2^1611059043 is an apocalyptic number.

1611059043 is a deficient number, since it is larger than the sum of its proper divisors (962485917).

1611059043 is a wasteful number, since it uses less digits than its factorization.

1611059043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 948.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 1611059043 is about 40137.9999875430. Note that the first 4 decimals coincide. The cubic root of 1611059043 is about 1172.2956469234.

The spelling of 1611059043 in words is "one billion, six hundred eleven million, fifty-nine thousand, forty-three".