103143397 has 4 divisors (see below), whose sum is σ = 117878176. Its totient is φ = 88408620.

The previous prime is 103143377. The next prime is 103143407. The reversal of 103143397 is 793341301.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 793341301 = 433 ⋅1832197.

It is a cyclic number.

It is not a de Polignac number, because 103143397 - 2¹⁵ = 103110629 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 (103143317) 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, 7367379 + ... + 7367392.

It is an arithmetic number, because the mean of its divisors is an integer number (29469544).

Almost surely, 2^103143397 is an apocalyptic number.

It is an amenable number.

103143397 is a deficient number, since it is larger than the sum of its proper divisors (14734779).

103143397 is an equidigital number, since it uses as much as digits as its factorization.

103143397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14734778.

The product of its (nonzero) digits is 6804, while the sum is 31.

The square root of 103143397 is about 10155.9537710645. The cubic root of 103143397 is about 468.9722479839.

Adding to 103143397 its reverse (793341301), we get a palindrome (896484698).

The spelling of 103143397 in words is "one hundred three million, one hundred forty-three thousand, three hundred ninety-seven".