126862993 has 4 divisors (see below), whose sum is σ = 134325540. Its totient is φ = 119400448.

The previous prime is 126862933. The next prime is 126863021. The reversal of 126862993 is 399268621.

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

It can be written as a sum of positive squares in 2 ways, for example, as 84768849 + 42094144 = 9207^2 + 6488^2 .

It is a cyclic number.

It is not a de Polignac number, because 126862993 - 2⁹ = 126862481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126862933) 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, 3731248 + ... + 3731281.

It is an arithmetic number, because the mean of its divisors is an integer number (33581385).

Almost surely, 2^126862993 is an apocalyptic number.

It is an amenable number.

126862993 is a deficient number, since it is larger than the sum of its proper divisors (7462547).

126862993 is an equidigital number, since it uses as much as digits as its factorization.

126862993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7462546.

The product of its digits is 279936, while the sum is 46.

The square root of 126862993 is about 11263.3473266165. The cubic root of 126862993 is about 502.4717514214.

It can be divided in two parts, 1268 and 62993, that added together give a triangular number (64261 = T₃₅₈).

The spelling of 126862993 in words is "one hundred twenty-six million, eight hundred sixty-two thousand, nine hundred ninety-three".