140034031 has 4 divisors (see below), whose sum is σ = 141721272. Its totient is φ = 138346792.

The previous prime is 140034029. The next prime is 140034043. The reversal of 140034031 is 130430041.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 140034031 - 2¹ = 140034029 is a prime.

It is a super-2 number, since 2×140034031² = 39219059676217922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 140033996 and 140034014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140034001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 843496 + ... + 843661.

It is an arithmetic number, because the mean of its divisors is an integer number (35430318).

Almost surely, 2^140034031 is an apocalyptic number.

140034031 is a deficient number, since it is larger than the sum of its proper divisors (1687241).

140034031 is an equidigital number, since it uses as much as digits as its factorization.

140034031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1687240.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 140034031 is about 11833.5975510408. The cubic root of 140034031 is about 519.2914795782.

Adding to 140034031 its reverse (130430041), we get a palindrome (270464072).

The spelling of 140034031 in words is "one hundred forty million, thirty-four thousand, thirty-one".