140631494 has 16 divisors (see below), whose sum is σ = 213334128. Its totient is φ = 69524832.

The previous prime is 140631461. The next prime is 140631541. The reversal of 140631494 is 494136041.

It is a happy number.

140631494 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 140631494.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70292 + ... + 72264.

It is an arithmetic number, because the mean of its divisors is an integer number (13333383).

Almost surely, 2^140631494 is an apocalyptic number.

140631494 is a deficient number, since it is larger than the sum of its proper divisors (72702634).

140631494 is a wasteful number, since it uses less digits than its factorization.

140631494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2359.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 140631494 is about 11858.8150335520. The cubic root of 140631494 is about 520.0289604186.

The spelling of 140631494 in words is "one hundred forty million, six hundred thirty-one thousand, four hundred ninety-four".