140464031 has 2 divisors, whose sum is σ = 140464032. Its totient is φ = 140464030.

The previous prime is 140464021. The next prime is 140464039. The reversal of 140464031 is 130464041.

It is a strong prime.

It is an emirp because it is prime and its reverse (130464041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140464031 - 2²⁶ = 73355167 is a prime.

It is a super-2 number, since 2×140464031² = 39460288009537922, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 140463988 and 140464006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140464039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70232015 + 70232016.

It is an arithmetic number, because the mean of its divisors is an integer number (70232016).

Almost surely, 2^140464031 is an apocalyptic number.

140464031 is a deficient number, since it is larger than the sum of its proper divisors (1).

140464031 is an equidigital number, since it uses as much as digits as its factorization.

140464031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 140464031 is about 11851.7522333198. The cubic root of 140464031 is about 519.8224628147.

The spelling of 140464031 in words is "one hundred forty million, four hundred sixty-four thousand, thirty-one".