140052197 has 2 divisors, whose sum is σ = 140052198. Its totient is φ = 140052196.

The previous prime is 140052191. The next prime is 140052217. The reversal of 140052197 is 791250041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 106481761 + 33570436 = 10319^2 + 5794^2 .

It is a cyclic number.

It is not a de Polignac number, because 140052197 - 2⁴ = 140052181 is a prime.

It is a super-2 number, since 2×140052197² = 39229235769053618, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140052191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70026098 + 70026099.

It is an arithmetic number, because the mean of its divisors is an integer number (70026099).

Almost surely, 2^140052197 is an apocalyptic number.

It is an amenable number.

140052197 is a deficient number, since it is larger than the sum of its proper divisors (1).

140052197 is an equidigital number, since it uses as much as digits as its factorization.

140052197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 140052197 is about 11834.3650864759. The cubic root of 140052197 is about 519.3139337418.

The spelling of 140052197 in words is "one hundred forty million, fifty-two thousand, one hundred ninety-seven".