161133354 has 32 divisors (see below), whose sum is σ = 373645440. Its totient is φ = 51375456.

The previous prime is 161133353. The next prime is 161133373. The reversal of 161133354 is 453331161.

161133354 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (161133353) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63627 + ... + 66110.

It is an arithmetic number, because the mean of its divisors is an integer number (11676420).

Almost surely, 2^161133354 is an apocalyptic number.

161133354 is an abundant number, since it is smaller than the sum of its proper divisors (212512086).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161133354 is a wasteful number, since it uses less digits than its factorization.

161133354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129771 (or 129765 counting only the distinct ones).

The product of its digits is 3240, while the sum is 27.

The square root of 161133354 is about 12693.8313365193. The cubic root of 161133354 is about 544.1623402643.

The spelling of 161133354 in words is "one hundred sixty-one million, one hundred thirty-three thousand, three hundred fifty-four".