161495340 has 24 divisors (see below), whose sum is σ = 452187120. Its totient is φ = 43065408.

The previous prime is 161495339. The next prime is 161495357. The reversal of 161495340 is 43594161.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1345735 + ... + 1345854.

It is an arithmetic number, because the mean of its divisors is an integer number (18841130).

Almost surely, 2^161495340 is an apocalyptic number.

161495340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161495340 is an abundant number, since it is smaller than the sum of its proper divisors (290691780).

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

161495340 is a wasteful number, since it uses less digits than its factorization.

161495340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2691601 (or 2691599 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 161495340 is about 12708.0816805685. The cubic root of 161495340 is about 544.5695223143.

The spelling of 161495340 in words is "one hundred sixty-one million, four hundred ninety-five thousand, three hundred forty".