161741370 has 64 divisors (see below), whose sum is σ = 444911616. Its totient is φ = 36863040.

The previous prime is 161741329. The next prime is 161741399. The reversal of 161741370 is 73147161.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 89617 + ... + 91403.

It is an arithmetic number, because the mean of its divisors is an integer number (6951744).

Almost surely, 2^161741370 is an apocalyptic number.

161741370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 161741370, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (222455808).

161741370 is an abundant number, since it is smaller than the sum of its proper divisors (283170246).

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

161741370 is a wasteful number, since it uses less digits than its factorization.

161741370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2235.

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 161741370 is about 12717.7580571420. The cubic root of 161741370 is about 544.8459233952.

The spelling of 161741370 in words is "one hundred sixty-one million, seven hundred forty-one thousand, three hundred seventy".