161442654 has 16 divisors (see below), whose sum is σ = 325429248. Its totient is φ = 53390232.

The previous prime is 161442653. The next prime is 161442667. The reversal of 161442654 is 456244161.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161442653) 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, 105172 + ... + 106695.

It is an arithmetic number, because the mean of its divisors is an integer number (20339328).

Almost surely, 2^161442654 is an apocalyptic number.

161442654 is an abundant number, since it is smaller than the sum of its proper divisors (163986594).

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

161442654 is a wasteful number, since it uses less digits than its factorization.

161442654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211999.

The product of its digits is 23040, while the sum is 33.

The square root of 161442654 is about 12706.0085786214. The cubic root of 161442654 is about 544.5102960223.

The spelling of 161442654 in words is "one hundred sixty-one million, four hundred forty-two thousand, six hundred fifty-four".