168525040 has 20 divisors (see below), whose sum is σ = 391820904. Its totient is φ = 67409984.

The previous prime is 168525023. The next prime is 168525043. The reversal of 168525040 is 40525861.

168525040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 168524993 and 168525011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168525043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1053202 + ... + 1053361.

Almost surely, 2^168525040 is an apocalyptic number.

168525040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

168525040 is an abundant number, since it is smaller than the sum of its proper divisors (223295864).

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

168525040 is a wasteful number, since it uses less digits than its factorization.

168525040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2106576 (or 2106570 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 168525040 is about 12981.7194546793. The cubic root of 168525040 is about 552.3590571602.

The spelling of 168525040 in words is "one hundred sixty-eight million, five hundred twenty-five thousand, forty".