161260877 has 4 divisors (see below), whose sum is σ = 162768096. Its totient is φ = 159753660.

The previous prime is 161260873. The next prime is 161260933. The reversal of 161260877 is 778062161.

161260877 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 161260877 - 2² = 161260873 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 161260877.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161260873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 753449 + ... + 753662.

It is an arithmetic number, because the mean of its divisors is an integer number (40692024).

Almost surely, 2^161260877 is an apocalyptic number.

It is an amenable number.

161260877 is a deficient number, since it is larger than the sum of its proper divisors (1507219).

161260877 is a wasteful number, since it uses less digits than its factorization.

161260877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1507218.

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 161260877 is about 12698.8533734349. The cubic root of 161260877 is about 544.3058547597.

The spelling of 161260877 in words is "one hundred sixty-one million, two hundred sixty thousand, eight hundred seventy-seven".