161078651 has 2 divisors, whose sum is σ = 161078652. Its totient is φ = 161078650.

The previous prime is 161078639. The next prime is 161078663. The reversal of 161078651 is 156870161.

It is a balanced prime because it is at equal distance from previous prime (161078639) and next prime (161078663).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-161078651 is a prime.

It is a super-3 number, since 3×161078651³ (a number of 26 digits) contains 333 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (161078851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80539325 + 80539326.

It is an arithmetic number, because the mean of its divisors is an integer number (80539326).

Almost surely, 2^161078651 is an apocalyptic number.

161078651 is a deficient number, since it is larger than the sum of its proper divisors (1).

161078651 is an equidigital number, since it uses as much as digits as its factorization.

161078651 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 35.

The square root of 161078651 is about 12691.6764456080. The cubic root of 161078651 is about 544.1007542530.

The spelling of 161078651 in words is "one hundred sixty-one million, seventy-eight thousand, six hundred fifty-one".