126600601 has 4 divisors (see below), whose sum is σ = 126720100. Its totient is φ = 126481104.

The previous prime is 126600577. The next prime is 126600613. The reversal of 126600601 is 106006621.

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 47817225 + 78783376 = 6915^2 + 8876^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126600601 is a prime.

It is a super-2 number, since 2×126600601² = 32055424347122402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126600641) 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, 58146 + ... + 60283.

It is an arithmetic number, because the mean of its divisors is an integer number (31680025).

Almost surely, 2^126600601 is an apocalyptic number.

It is an amenable number.

126600601 is a deficient number, since it is larger than the sum of its proper divisors (119499).

126600601 is a wasteful number, since it uses less digits than its factorization.

126600601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119498.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 126600601 is about 11251.6932503513. The cubic root of 126600601 is about 502.1250898570.

The spelling of 126600601 in words is "one hundred twenty-six million, six hundred thousand, six hundred one".