103143979 has 2 divisors, whose sum is σ = 103143980. Its totient is φ = 103143978.

The previous prime is 103143959. The next prime is 103144009. The reversal of 103143979 is 979341301.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 103143979 - 2¹¹ = 103141931 is a prime.

It is not a weakly prime, because it can be changed into another prime (103143919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51571989 + 51571990.

It is an arithmetic number, because the mean of its divisors is an integer number (51571990).

Almost surely, 2^103143979 is an apocalyptic number.

103143979 is a deficient number, since it is larger than the sum of its proper divisors (1).

103143979 is an equidigital number, since it uses as much as digits as its factorization.

103143979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20412, while the sum is 37.

The square root of 103143979 is about 10155.9824241675. The cubic root of 103143979 is about 468.9731300612.

The spelling of 103143979 in words is "one hundred three million, one hundred forty-three thousand, nine hundred seventy-nine".