165492140 has 48 divisors (see below), whose sum is σ = 380618784. Its totient is φ = 59942400.

The previous prime is 165492139. The next prime is 165492143. The reversal of 165492140 is 41294561.

It is a junction number, because it is equal to n+sod(n) for n = 165492097 and 165492106.

It is not an unprimeable number, because it can be changed into a prime (165492143) 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, 60482 + ... + 63158.

It is an arithmetic number, because the mean of its divisors is an integer number (7929558).

Almost surely, 2^165492140 is an apocalyptic number.

165492140 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 165492140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190309392).

165492140 is an abundant number, since it is smaller than the sum of its proper divisors (215126644).

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

165492140 is a wasteful number, since it uses less digits than its factorization.

165492140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2978 (or 2976 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 165492140 is about 12864.3748390662. The cubic root of 165492140 is about 549.0254256348.

The spelling of 165492140 in words is "one hundred sixty-five million, four hundred ninety-two thousand, one hundred forty".