154935917161 has 9 divisors (see below), whose sum is σ = 155935390999. Its totient is φ = 153942816424.

The previous prime is 154935917117. The next prime is 154935917179. The reversal of 154935917161 is 161719539451.

It is a happy number.

The square root of 154935917161 is 393619.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 28168587225 + 126767329936 = 167835^2 + 356044^2 .

It is not a de Polignac number, because 154935917161 - 2⁹ = 154935916649 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 154935917099 and 154935917108.

It is not an unprimeable number, because it can be changed into a prime (154935917261) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 65733195 + ... + 65735551.

Almost surely, 2^154935917161 is an apocalyptic number.

154935917161 is the 393619-th square number.

154935917161 is the 196810-th centered octagonal number.

It is an amenable number.

154935917161 is a deficient number, since it is larger than the sum of its proper divisors (999473838).

154935917161 is an frugal number, since it uses more digits than its factorization.

154935917161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5048 (or 2524 counting only the distinct ones).

The product of its digits is 1020600, while the sum is 52.

The spelling of 154935917161 in words is "one hundred fifty-four billion, nine hundred thirty-five million, nine hundred seventeen thousand, one hundred sixty-one".