140694129 has 12 divisors (see below), whose sum is σ = 203513856. Its totient is φ = 93662712.

The previous prime is 140694079. The next prime is 140694133. The reversal of 140694129 is 921496041.

It is a happy number.

It is not a de Polignac number, because 140694129 - 2⁸ = 140693873 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 140694093 and 140694102.

It is not an unprimeable number, because it can be changed into a prime (140694149) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4209 + ... + 17294.

It is an arithmetic number, because the mean of its divisors is an integer number (16959488).

Almost surely, 2^140694129 is an apocalyptic number.

It is an amenable number.

140694129 is a deficient number, since it is larger than the sum of its proper divisors (62819727).

140694129 is a wasteful number, since it uses less digits than its factorization.

140694129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22236 (or 22233 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 140694129 is about 11861.4556020752. The cubic root of 140694129 is about 520.1061531311.

The spelling of 140694129 in words is "one hundred forty million, six hundred ninety-four thousand, one hundred twenty-nine".