161098411 has 2 divisors, whose sum is σ = 161098412. Its totient is φ = 161098410.

The previous prime is 161098391. The next prime is 161098501. The reversal of 161098411 is 114890161.

161098411 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (114890161) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 161098411 - 2¹⁵ = 161065643 is a prime.

It is not a weakly prime, because it can be changed into another prime (161098211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80549205 + 80549206.

It is an arithmetic number, because the mean of its divisors is an integer number (80549206).

Almost surely, 2^161098411 is an apocalyptic number.

161098411 is a deficient number, since it is larger than the sum of its proper divisors (1).

161098411 is an equidigital number, since it uses as much as digits as its factorization.

161098411 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 31.

The square root of 161098411 is about 12692.4548846943. The cubic root of 161098411 is about 544.1230021657.

It can be divided in two parts, 161098 and 411, that multiplied together give a triangular number (66211278 = T₁₁₅₀₇).

The spelling of 161098411 in words is "one hundred sixty-one million, ninety-eight thousand, four hundred eleven".