161419930 has 32 divisors (see below), whose sum is σ = 351599616. Its totient is φ = 52088064.

The previous prime is 161419919. The next prime is 161419933. The reversal of 161419930 is 39914161.

It is a happy number.

161419930 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 (34).

It is not an unprimeable number, because it can be changed into a prime (161419933) 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, 66634 + ... + 69013.

It is an arithmetic number, because the mean of its divisors is an integer number (10987488).

Almost surely, 2^161419930 is an apocalyptic number.

161419930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161419930 is an abundant number, since it is smaller than the sum of its proper divisors (190179686).

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

161419930 is a wasteful number, since it uses less digits than its factorization.

161419930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135678.

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 161419930 is about 12705.1143245545. The cubic root of 161419930 is about 544.4847471515.

The spelling of 161419930 in words is "one hundred sixty-one million, four hundred nineteen thousand, nine hundred thirty".