103143442 has 4 divisors (see below), whose sum is σ = 154715166. Its totient is φ = 51571720.

The previous prime is 103143407. The next prime is 103143451. The reversal of 103143442 is 244341301.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 53567761 + 49575681 = 7319^2 + 7041^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25785859 + ... + 25785862.

Almost surely, 2^103143442 is an apocalyptic number.

103143442 is a deficient number, since it is larger than the sum of its proper divisors (51571724).

103143442 is an equidigital number, since it uses as much as digits as its factorization.

103143442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51571723.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 103143442 is about 10155.9559865135. The cubic root of 103143442 is about 468.9723161859.

Adding to 103143442 its reverse (244341301), we get a palindrome (347484743).

The spelling of 103143442 in words is "one hundred three million, one hundred forty-three thousand, four hundred forty-two".