126049605 has 16 divisors (see below), whose sum is σ = 220014144. Its totient is φ = 61114880.

The previous prime is 126049601. The next prime is 126049633. The reversal of 126049605 is 506940621.

It is not a de Polignac number, because 126049605 - 2² = 126049601 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126049601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 381804 + ... + 382133.

It is an arithmetic number, because the mean of its divisors is an integer number (13750884).

Almost surely, 2^126049605 is an apocalyptic number.

126049605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

126049605 is a deficient number, since it is larger than the sum of its proper divisors (93964539).

126049605 is a wasteful number, since it uses less digits than its factorization.

126049605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 763956.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 126049605 is about 11227.1815252093. The cubic root of 126049605 is about 501.3955744531.

The spelling of 126049605 in words is "one hundred twenty-six million, forty-nine thousand, six hundred five".