1375941197 has 4 divisors (see below), whose sum is σ = 1383070620. Its totient is φ = 1368811776.

The previous prime is 1375941179. The next prime is 1375941199. The reversal of 1375941197 is 7911495731.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 319301161 + 1056640036 = 17869^2 + 32506^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1375941197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1375941199) 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, 3564422 + ... + 3564807.

It is an arithmetic number, because the mean of its divisors is an integer number (345767655).

Almost surely, 2^1375941197 is an apocalyptic number.

It is an amenable number.

1375941197 is a deficient number, since it is larger than the sum of its proper divisors (7129423).

1375941197 is an equidigital number, since it uses as much as digits as its factorization.

1375941197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7129422.

The product of its digits is 238140, while the sum is 47.

The square root of 1375941197 is about 37093.6813621943. The cubic root of 1375941197 is about 1112.2437090382.

The spelling of 1375941197 in words is "one billion, three hundred seventy-five million, nine hundred forty-one thousand, one hundred ninety-seven".