161419100 has 18 divisors (see below), whose sum is σ = 350279664. Its totient is φ = 64567600.

The previous prime is 161419087. The next prime is 161419121. The reversal of 161419100 is 1914161.

161419100 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×161419100² = 52112251689620000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 806996 + ... + 807195.

Almost surely, 2^161419100 is an apocalyptic number.

161419100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161419100 is an abundant number, since it is smaller than the sum of its proper divisors (188860564).

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

161419100 is a wasteful number, since it uses less digits than its factorization.

161419100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1614205 (or 1614198 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 23.

The square root of 161419100 is about 12705.0816605010. The cubic root of 161419100 is about 544.4838139269.

The spelling of 161419100 in words is "one hundred sixty-one million, four hundred nineteen thousand, one hundred".