126303989 has 8 divisors (see below), whose sum is σ = 145081728. Its totient is φ = 107709840.

The previous prime is 126303923. The next prime is 126304007. The reversal of 126303989 is 989303621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 126303989 - 2¹² = 126299893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126303389) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44417 + ... + 47174.

It is an arithmetic number, because the mean of its divisors is an integer number (18135216).

Almost surely, 2^126303989 is an apocalyptic number.

It is an amenable number.

126303989 is a deficient number, since it is larger than the sum of its proper divisors (18777739).

126303989 is an equidigital number, since it uses as much as digits as its factorization.

126303989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91795.

The product of its (nonzero) digits is 69984, while the sum is 41.

The square root of 126303989 is about 11238.5047492983. The cubic root of 126303989 is about 501.7326409752.

The spelling of 126303989 in words is "one hundred twenty-six million, three hundred three thousand, nine hundred eighty-nine".