140534402 has 8 divisors (see below), whose sum is σ = 210913356. Its totient is φ = 70229952.

The previous prime is 140534389. The next prime is 140534411. The reversal of 140534402 is 204435041.

It can be written as a sum of positive squares in 2 ways, for example, as 134536801 + 5997601 = 11599^2 + 2449^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 13643 + ... + 21614.

Almost surely, 2^140534402 is an apocalyptic number.

140534402 is a deficient number, since it is larger than the sum of its proper divisors (70378954).

140534402 is a wasteful number, since it uses less digits than its factorization.

140534402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37252.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 140534402 is about 11854.7206630945. The cubic root of 140534402 is about 519.9092568481.

Adding to 140534402 its reverse (204435041), we get a palindrome (344969443).

The spelling of 140534402 in words is "one hundred forty million, five hundred thirty-four thousand, four hundred two".