1617261043 has 2 divisors, whose sum is σ = 1617261044. Its totient is φ = 1617261042.

The previous prime is 1617261011. The next prime is 1617261047. The reversal of 1617261043 is 3401627161.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1617261043 - 2⁵ = 1617261011 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1617260996 and 1617261014.

It is not a weakly prime, because it can be changed into another prime (1617261047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 808630521 + 808630522.

It is an arithmetic number, because the mean of its divisors is an integer number (808630522).

Almost surely, 2^1617261043 is an apocalyptic number.

1617261043 is a deficient number, since it is larger than the sum of its proper divisors (1).

1617261043 is an equidigital number, since it uses as much as digits as its factorization.

1617261043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 1617261043 is about 40215.1842343163. The cubic root of 1617261043 is about 1173.7980267461.

The spelling of 1617261043 in words is "one billion, six hundred seventeen million, two hundred sixty-one thousand, forty-three".