140790197 has 4 divisors (see below), whose sum is σ = 140890560. Its totient is φ = 140689836.

The previous prime is 140790173. The next prime is 140790227. The reversal of 140790197 is 791097041.

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: 791097041 = 7 ⋅113013863.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140790197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 140790197.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140790137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48047 + ... + 50892.

It is an arithmetic number, because the mean of its divisors is an integer number (35222640).

Almost surely, 2^140790197 is an apocalyptic number.

It is an amenable number.

140790197 is a deficient number, since it is larger than the sum of its proper divisors (100363).

140790197 is an equidigital number, since it uses as much as digits as its factorization.

140790197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100362.

The product of its (nonzero) digits is 15876, while the sum is 38.

The square root of 140790197 is about 11865.5044983347. The cubic root of 140790197 is about 520.2245048827.

The spelling of 140790197 in words is "one hundred forty million, seven hundred ninety thousand, one hundred ninety-seven".