161454855 has 8 divisors (see below), whose sum is σ = 258327792. Its totient is φ = 86109248.

The previous prime is 161454841. The next prime is 161454859. The reversal of 161454855 is 558454161.

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 161454855 - 2²¹ = 159357703 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161454859) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5381814 + ... + 5381843.

It is an arithmetic number, because the mean of its divisors is an integer number (32290974).

Almost surely, 2^161454855 is an apocalyptic number.

161454855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

161454855 is a deficient number, since it is larger than the sum of its proper divisors (96872937).

161454855 is a wasteful number, since it uses less digits than its factorization.

161454855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10763665.

The product of its digits is 96000, while the sum is 39.

The square root of 161454855 is about 12706.4886967250. The cubic root of 161454855 is about 544.5240127665.

The spelling of 161454855 in words is "one hundred sixty-one million, four hundred fifty-four thousand, eight hundred fifty-five".