126636029 has 8 divisors (see below), whose sum is σ = 136553760. Its totient is φ = 116743536.

The previous prime is 126636019. The next prime is 126636031. The reversal of 126636029 is 920636621.

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

It is not a de Polignac number, because 126636029 - 2¹² = 126631933 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 126636029.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126636019) 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, 4862 + ... + 16640.

It is an arithmetic number, because the mean of its divisors is an integer number (17069220).

Almost surely, 2^126636029 is an apocalyptic number.

It is an amenable number.

126636029 is a deficient number, since it is larger than the sum of its proper divisors (9917731).

126636029 is a wasteful number, since it uses less digits than its factorization.

126636029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12619.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 126636029 is about 11253.2674810474. The cubic root of 126636029 is about 502.1719238330.

The spelling of 126636029 in words is "one hundred twenty-six million, six hundred thirty-six thousand, twenty-nine".