157947103 has 2 divisors, whose sum is σ = 157947104. Its totient is φ = 157947102.

The previous prime is 157947089. The next prime is 157947121. The reversal of 157947103 is 301749751.

It is a weak prime.

It is an emirp because it is prime and its reverse (301749751) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-157947103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157947173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78973551 + 78973552.

It is an arithmetic number, because the mean of its divisors is an integer number (78973552).

Almost surely, 2^157947103 is an apocalyptic number.

157947103 is a deficient number, since it is larger than the sum of its proper divisors (1).

157947103 is an equidigital number, since it uses as much as digits as its factorization.

157947103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26460, while the sum is 37.

The square root of 157947103 is about 12567.7007841530. The cubic root of 157947103 is about 540.5516801366.

The spelling of 157947103 in words is "one hundred fifty-seven million, nine hundred forty-seven thousand, one hundred three".