126982403 has 2 divisors, whose sum is σ = 126982404. Its totient is φ = 126982402.

The previous prime is 126982399. The next prime is 126982459. The reversal of 126982403 is 304289621.

It is a weak prime.

It is an emirp because it is prime and its reverse (304289621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 126982403 - 2² = 126982399 is a prime.

It is a super-2 number, since 2×126982403² = 32249061343308818, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (126982463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63491201 + 63491202.

It is an arithmetic number, because the mean of its divisors is an integer number (63491202).

Almost surely, 2^126982403 is an apocalyptic number.

126982403 is a deficient number, since it is larger than the sum of its proper divisors (1).

126982403 is an equidigital number, since it uses as much as digits as its factorization.

126982403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 126982403 is about 11268.6469019133. The cubic root of 126982403 is about 502.6293527707.

The spelling of 126982403 in words is "one hundred twenty-six million, nine hundred eighty-two thousand, four hundred three".