1365140197 has 8 divisors (see below), whose sum is σ = 1402644600. Its totient is φ = 1327667904.

The previous prime is 1365140173. The next prime is 1365140201. The reversal of 1365140197 is 7910415631.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1039482081 + 325658116 = 32241^2 + 18046^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1365140197 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1365140107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96579 + ... + 109807.

It is an arithmetic number, because the mean of its divisors is an integer number (175330575).

Almost surely, 2^1365140197 is an apocalyptic number.

It is an amenable number.

1365140197 is a deficient number, since it is larger than the sum of its proper divisors (37504403).

1365140197 is a wasteful number, since it uses less digits than its factorization.

1365140197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16055.

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 1365140197 is about 36947.8036830337. The cubic root of 1365140197 is about 1109.3257266294.

The spelling of 1365140197 in words is "one billion, three hundred sixty-five million, one hundred forty thousand, one hundred ninety-seven".