161954284 has 12 divisors (see below), whose sum is σ = 284080608. Its totient is φ = 80788400.

The previous prime is 161954281. The next prime is 161954311. The reversal of 161954284 is 482459161.

It is not an unprimeable number, because it can be changed into a prime (161954281) 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, 45247 + ... + 48694.

It is an arithmetic number, because the mean of its divisors is an integer number (23673384).

Almost surely, 2^161954284 is an apocalyptic number.

It is an amenable number.

161954284 is a deficient number, since it is larger than the sum of its proper divisors (122126324).

161954284 is a wasteful number, since it uses less digits than its factorization.

161954284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94376 (or 94374 counting only the distinct ones).

The product of its digits is 69120, while the sum is 40.

The square root of 161954284 is about 12726.1260405514. The cubic root of 161954284 is about 545.0848943309.

The spelling of 161954284 in words is "one hundred sixty-one million, nine hundred fifty-four thousand, two hundred eighty-four".