140054531 has 2 divisors, whose sum is σ = 140054532. Its totient is φ = 140054530.

The previous prime is 140054527. The next prime is 140054549. The reversal of 140054531 is 135450041.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 140054531 - 2² = 140054527 is a prime.

It is a super-2 number, since 2×140054531² = 39230543307259922, 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 = 140054497 and 140054506.

It is not a weakly prime, because it can be changed into another prime (140056531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70027265 + 70027266.

It is an arithmetic number, because the mean of its divisors is an integer number (70027266).

Almost surely, 2^140054531 is an apocalyptic number.

140054531 is a deficient number, since it is larger than the sum of its proper divisors (1).

140054531 is an equidigital number, since it uses as much as digits as its factorization.

140054531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 140054531 is about 11834.4636971854. The cubic root of 140054531 is about 519.3168185519.

The spelling of 140054531 in words is "one hundred forty million, fifty-four thousand, five hundred thirty-one".