140523524 has 12 divisors (see below), whose sum is σ = 248679900. Its totient is φ = 69472128.

The previous prime is 140523497. The next prime is 140523529. The reversal of 140523524 is 425325041.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 92775424 + 47748100 = 9632^2 + 6910^2 .

It is a junction number, because it is equal to n+sod(n) for n = 140523493 and 140523502.

It is not an unprimeable number, because it can be changed into a prime (140523529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 197009 + ... + 197720.

It is an arithmetic number, because the mean of its divisors is an integer number (20723325).

Almost surely, 2^140523524 is an apocalyptic number.

It is an amenable number.

140523524 is a deficient number, since it is larger than the sum of its proper divisors (108156376).

140523524 is a wasteful number, since it uses less digits than its factorization.

140523524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394822 (or 394820 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 140523524 is about 11854.2618496472. The cubic root of 140523524 is about 519.8958420573.

Adding to 140523524 its reverse (425325041), we get a palindrome (565848565).

It can be divided in two parts, 14052 and 3524, that added together give a cube (17576 = 26³).

The spelling of 140523524 in words is "one hundred forty million, five hundred twenty-three thousand, five hundred twenty-four".