545168140 has 48 divisors (see below), whose sum is σ = 1314673920. Its totient is φ = 187807680.

The previous prime is 545168137. The next prime is 545168191. The reversal of 545168140 is 41861545.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 545168096 and 545168105.

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, 61032 + ... + 69391.

It is an arithmetic number, because the mean of its divisors is an integer number (27389040).

Almost surely, 2^545168140 is an apocalyptic number.

It is an amenable number.

545168140 is an abundant number, since it is smaller than the sum of its proper divisors (769505780).

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

545168140 is a wasteful number, since it uses less digits than its factorization.

545168140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130462 (or 130460 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 34.

The square root of 545168140 is about 23348.8359452886. The cubic root of 545168140 is about 816.9149095862.

It can be divided in two parts, 5451 and 68140, that multiplied together give a triangular number (371431140 = T₂₇₂₅₅).

The spelling of 545168140 in words is "five hundred forty-five million, one hundred sixty-eight thousand, one hundred forty".