140012497 has 4 divisors (see below), whose sum is σ = 141984576. Its totient is φ = 138040420.

The previous prime is 140012491. The next prime is 140012503. The reversal of 140012497 is 794210041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 794210041 = 6143 ⋅129287.

It is an interprime number because it is at equal distance from previous prime (140012491) and next prime (140012503).

It is a cyclic number.

It is not a de Polignac number, because 140012497 - 2³ = 140012489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140012491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 985933 + ... + 986074.

It is an arithmetic number, because the mean of its divisors is an integer number (35496144).

Almost surely, 2^140012497 is an apocalyptic number.

It is an amenable number.

140012497 is a deficient number, since it is larger than the sum of its proper divisors (1972079).

140012497 is an equidigital number, since it uses as much as digits as its factorization.

140012497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1972078.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 140012497 is about 11832.6876490508. The cubic root of 140012497 is about 519.2648598680.

The spelling of 140012497 in words is "one hundred forty million, twelve thousand, four hundred ninety-seven".