140030497 has 2 divisors, whose sum is σ = 140030498. Its totient is φ = 140030496.

The previous prime is 140030477. The next prime is 140030507. The reversal of 140030497 is 794030041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 130051216 + 9979281 = 11404^2 + 3159^2 .

It is a cyclic number.

It is not a de Polignac number, because 140030497 - 2⁷ = 140030369 is a prime.

It is a super-4 number, since 4×140030497⁴ (a number of 34 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (140030467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70015248 + 70015249.

It is an arithmetic number, because the mean of its divisors is an integer number (70015249).

Almost surely, 2^140030497 is an apocalyptic number.

It is an amenable number.

140030497 is a deficient number, since it is larger than the sum of its proper divisors (1).

140030497 is an equidigital number, since it uses as much as digits as its factorization.

140030497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 140030497 is about 11833.4482294892. The cubic root of 140030497 is about 519.2871111364.

The spelling of 140030497 in words is "one hundred forty million, thirty thousand, four hundred ninety-seven".