140512532 has 12 divisors (see below), whose sum is σ = 252543060. Its totient is φ = 68357376.

The previous prime is 140512529. The next prime is 140512549. The reversal of 140512532 is 235215041.

It can be written as a sum of positive squares in 2 ways, for example, as 59043856 + 81468676 = 7684^2 + 9026^2 .

It is a junction number, because it is equal to n+sod(n) for n = 140512498 and 140512507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 474557 + ... + 474852.

It is an arithmetic number, because the mean of its divisors is an integer number (21045255).

Almost surely, 2^140512532 is an apocalyptic number.

It is an amenable number.

140512532 is a deficient number, since it is larger than the sum of its proper divisors (112030528).

140512532 is a wasteful number, since it uses less digits than its factorization.

140512532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 949450 (or 949448 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 140512532 is about 11853.7982098566. The cubic root of 140512532 is about 519.8822859780.

Adding to 140512532 its reverse (235215041), we get a palindrome (375727573).

The spelling of 140512532 in words is "one hundred forty million, five hundred twelve thousand, five hundred thirty-two".