140256436 has 12 divisors (see below), whose sum is σ = 245536480. Its totient is φ = 70103160.

The previous prime is 140256407. The next prime is 140256437. The reversal of 140256436 is 634652041.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 140256398 and 140256407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140256437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12721 + ... + 21031.

Almost surely, 2^140256436 is an apocalyptic number.

It is an amenable number.

140256436 is a deficient number, since it is larger than the sum of its proper divisors (105280044).

140256436 is a wasteful number, since it uses less digits than its factorization.

140256436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12534 (or 12532 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 140256436 is about 11842.9910073427. The cubic root of 140256436 is about 519.5662507219.

The spelling of 140256436 in words is "one hundred forty million, two hundred fifty-six thousand, four hundred thirty-six".