126146987 has 4 divisors (see below), whose sum is σ = 133567416. Its totient is φ = 118726560.

The previous prime is 126146959. The next prime is 126146989. The reversal of 126146987 is 789641621.

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

It is a cyclic number.

It is not a de Polignac number, because 126146987 - 2¹⁰ = 126145963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126146989) 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, 3710189 + ... + 3710222.

It is an arithmetic number, because the mean of its divisors is an integer number (33391854).

Almost surely, 2^126146987 is an apocalyptic number.

126146987 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

126146987 is a deficient number, since it is larger than the sum of its proper divisors (7420429).

126146987 is an equidigital number, since it uses as much as digits as its factorization.

126146987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7420428.

The product of its digits is 145152, while the sum is 44.

The square root of 126146987 is about 11231.5175733291. The cubic root of 126146987 is about 501.5246620854.

The spelling of 126146987 in words is "one hundred twenty-six million, one hundred forty-six thousand, nine hundred eighty-seven".