140034391 has 8 divisors (see below), whose sum is σ = 161300480. Its totient is φ = 119083608.

The previous prime is 140034353. The next prime is 140034407. The reversal of 140034391 is 193430041.

It is a happy number.

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

It is not a de Polignac number, because 140034391 - 2²³ = 131645783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140034091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77871 + ... + 79648.

It is an arithmetic number, because the mean of its divisors is an integer number (20162560).

Almost surely, 2^140034391 is an apocalyptic number.

140034391 is a deficient number, since it is larger than the sum of its proper divisors (21266089).

140034391 is a wasteful number, since it uses less digits than its factorization.

140034391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157653.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 140034391 is about 11833.6127619590. The cubic root of 140034391 is about 519.2919245766.

The spelling of 140034391 in words is "one hundred forty million, thirty-four thousand, three hundred ninety-one".