1397158223 has 8 divisors (see below), whose sum is σ = 1415989440. Its totient is φ = 1378396800.

The previous prime is 1397158181. The next prime is 1397158241. The reversal of 1397158223 is 3228517931.

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 1397158223 - 2⁶ = 1397158159 is a prime.

It is a super-2 number, since 2×1397158223² = 3904102200193035458, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1397158423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23498 + ... + 57848.

It is an arithmetic number, because the mean of its divisors is an integer number (176998680).

Almost surely, 2^1397158223 is an apocalyptic number.

1397158223 is a deficient number, since it is larger than the sum of its proper divisors (18831217).

1397158223 is an equidigital number, since it uses as much as digits as its factorization.

1397158223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34897.

The product of its digits is 90720, while the sum is 41.

The square root of 1397158223 is about 37378.5797349230. The cubic root of 1397158223 is about 1117.9315092402.

The spelling of 1397158223 in words is "one billion, three hundred ninety-seven million, one hundred fifty-eight thousand, two hundred twenty-three".