140171431 has 2 divisors, whose sum is σ = 140171432. Its totient is φ = 140171430.

The previous prime is 140171411. The next prime is 140171459. The reversal of 140171431 is 134171041.

It is a happy number.

140171431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 140171431 - 2¹⁷ = 140040359 is a prime.

It is a super-2 number, since 2×140171431² = 39296060137175522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140171411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70085715 + 70085716.

It is an arithmetic number, because the mean of its divisors is an integer number (70085716).

Almost surely, 2^140171431 is an apocalyptic number.

140171431 is a deficient number, since it is larger than the sum of its proper divisors (1).

140171431 is an equidigital number, since it uses as much as digits as its factorization.

140171431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 140171431 is about 11839.4016318393. The cubic root of 140171431 is about 519.4612652732.

The spelling of 140171431 in words is "one hundred forty million, one hundred seventy-one thousand, four hundred thirty-one".