140550031 has 4 divisors (see below), whose sum is σ = 141623064. Its totient is φ = 139477000.

The previous prime is 140550029. The next prime is 140550041. The reversal of 140550031 is 130055041.

140550031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130055041 = 23 ⋅5654567.

It is a cyclic number.

It is not a de Polignac number, because 140550031 - 2¹ = 140550029 is a prime.

It is a super-2 number, since 2×140550031² = 39508622428201922, 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 = 140549990 and 140550008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140550041) 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, 536320 + ... + 536581.

It is an arithmetic number, because the mean of its divisors is an integer number (35405766).

Almost surely, 2^140550031 is an apocalyptic number.

140550031 is a deficient number, since it is larger than the sum of its proper divisors (1073033).

140550031 is a wasteful number, since it uses less digits than its factorization.

140550031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1073032.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 140550031 is about 11855.3798336451. The cubic root of 140550031 is about 519.9285293785.

The spelling of 140550031 in words is "one hundred forty million, five hundred fifty thousand, thirty-one".