1397049121 has 8 divisors (see below), whose sum is σ = 1504853504. Its totient is φ = 1289293200.

The previous prime is 1397049097. The next prime is 1397049151. The reversal of 1397049121 is 1219407931.

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

It is not a de Polignac number, because 1397049121 - 2⁵ = 1397049089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1397049151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66880 + ... + 85246.

It is an arithmetic number, because the mean of its divisors is an integer number (188106688).

Almost surely, 2^1397049121 is an apocalyptic number.

It is an amenable number.

1397049121 is a deficient number, since it is larger than the sum of its proper divisors (107804383).

1397049121 is a wasteful number, since it uses less digits than its factorization.

1397049121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24231.

The product of its (nonzero) digits is 13608, while the sum is 37.

The square root of 1397049121 is about 37377.1202876840. The cubic root of 1397049121 is about 1117.9024092818.

The spelling of 1397049121 in words is "one billion, three hundred ninety-seven million, forty-nine thousand, one hundred twenty-one".