1377040197 has 8 divisors (see below), whose sum is σ = 1977288544. Its totient is φ = 847409328.

The previous prime is 1377040193. The next prime is 1377040201. The reversal of 1377040197 is 7910407731.

It is an interprime number because it is at equal distance from previous prime (1377040193) and next prime (1377040201).

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

It is not a de Polignac number, because 1377040197 - 2² = 1377040193 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 35308723 = 1377040197 / (1 + 3 + 7 + 7 + 0 + 4 + 0 + 1 + 9 + 7).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1377040193) 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, 17654323 + ... + 17654400.

It is an arithmetic number, because the mean of its divisors is an integer number (247161068).

Almost surely, 2^1377040197 is an apocalyptic number.

It is an amenable number.

1377040197 is a deficient number, since it is larger than the sum of its proper divisors (600248347).

1377040197 is a wasteful number, since it uses less digits than its factorization.

1377040197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35308739.

The product of its (nonzero) digits is 37044, while the sum is 39.

The square root of 1377040197 is about 37108.4922490796. The cubic root of 1377040197 is about 1112.5397562193.

The spelling of 1377040197 in words is "one billion, three hundred seventy-seven million, forty thousand, one hundred ninety-seven".