1397757055 has 8 divisors (see below), whose sum is σ = 1677870000. Its totient is φ = 1117831296.

The previous prime is 1397757043. The next prime is 1397757077. The reversal of 1397757055 is 5507577931.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1397757055 - 2¹⁵ = 1397724287 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29805 + ... + 60694.

It is an arithmetic number, because the mean of its divisors is an integer number (209733750).

Almost surely, 2^1397757055 is an apocalyptic number.

1397757055 is a deficient number, since it is larger than the sum of its proper divisors (280112945).

1397757055 is an equidigital number, since it uses as much as digits as its factorization.

1397757055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93593.

The product of its (nonzero) digits is 1157625, while the sum is 49.

The square root of 1397757055 is about 37386.5892399935. The cubic root of 1397757055 is about 1118.0912042385.

The spelling of 1397757055 in words is "one billion, three hundred ninety-seven million, seven hundred fifty-seven thousand, fifty-five".