140097528 has 24 divisors (see below), whose sum is σ = 379431000. Its totient is φ = 46699152.

The previous prime is 140097523. The next prime is 140097539. The reversal of 140097528 is 825790041.

140097528 is a `hidden beast` number, since 1 + 40 + 0 + 97 + 528 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 140097492 and 140097501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140097523) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 972828 + ... + 972971.

It is an arithmetic number, because the mean of its divisors is an integer number (15809625).

Almost surely, 2^140097528 is an apocalyptic number.

140097528 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

140097528 is an abundant number, since it is smaller than the sum of its proper divisors (239333472).

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

140097528 is a wasteful number, since it uses less digits than its factorization.

140097528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1945811 (or 1945804 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 140097528 is about 11836.2801589013. The cubic root of 140097528 is about 519.3699568556.

It can be divided in two parts, 140097 and 528, that added together give a square (140625 = 375²).

The spelling of 140097528 in words is "one hundred forty million, ninety-seven thousand, five hundred twenty-eight".