161276455 has 8 divisors (see below), whose sum is σ = 195706800. Its totient is φ = 127571136.

The previous prime is 161276443. The next prime is 161276461. The reversal of 161276455 is 554672161.

It is a happy number.

161276455 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 161276455 - 2⁹ = 161275943 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 180765 + ... + 181654.

It is an arithmetic number, because the mean of its divisors is an integer number (24463350).

Almost surely, 2^161276455 is an apocalyptic number.

161276455 is a deficient number, since it is larger than the sum of its proper divisors (34430345).

161276455 is an equidigital number, since it uses as much as digits as its factorization.

161276455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362513.

The product of its digits is 50400, while the sum is 37.

The square root of 161276455 is about 12699.4667210871. The cubic root of 161276455 is about 544.3233810681.

The spelling of 161276455 in words is "one hundred sixty-one million, two hundred seventy-six thousand, four hundred fifty-five".