161352340 has 48 divisors (see below), whose sum is σ = 348340608. Its totient is φ = 62745984.

The previous prime is 161352277. The next prime is 161352377. The reversal of 161352340 is 43253161.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 320529 + ... + 321031.

It is an arithmetic number, because the mean of its divisors is an integer number (7257096).

Almost surely, 2^161352340 is an apocalyptic number.

161352340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 161352340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174170304).

161352340 is an abundant number, since it is smaller than the sum of its proper divisors (186988268).

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

161352340 is a wasteful number, since it uses less digits than its factorization.

161352340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 928 (or 926 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 161352340 is about 12702.4540935994. The cubic root of 161352340 is about 544.4087407133.

The spelling of 161352340 in words is "one hundred sixty-one million, three hundred fifty-two thousand, three hundred forty".