163140740 has 48 divisors (see below), whose sum is σ = 393652224. Its totient is φ = 55632000.

The previous prime is 163140739. The next prime is 163140751. The reversal of 163140740 is 47041361.

It is a super-2 number, since 2×163140740² = 53229802095495200, which contains 22 as substring.

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, 23690 + ... + 29790.

It is an arithmetic number, because the mean of its divisors is an integer number (8201088).

Almost surely, 2^163140740 is an apocalyptic number.

163140740 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 163140740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (196826112).

163140740 is an abundant number, since it is smaller than the sum of its proper divisors (230511484).

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

163140740 is a wasteful number, since it uses less digits than its factorization.

163140740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6308 (or 6306 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 163140740 is about 12772.6559493318. The cubic root of 163140740 is about 546.4127307288.

The spelling of 163140740 in words is "one hundred sixty-three million, one hundred forty thousand, seven hundred forty".