126612501 has 16 divisors (see below), whose sum is σ = 172882944. Its totient is φ = 82385264.

The previous prime is 126612461. The next prime is 126612503. The reversal of 126612501 is 105216621.

It is a cyclic number.

It is not a de Polignac number, because 126612501 - 2¹¹ = 126610453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126612503) 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, 61450 + ... + 63476.

It is an arithmetic number, because the mean of its divisors is an integer number (10805184).

Almost surely, 2^126612501 is an apocalyptic number.

It is an amenable number.

126612501 is a deficient number, since it is larger than the sum of its proper divisors (46270443).

126612501 is a wasteful number, since it uses less digits than its factorization.

126612501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2520.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 126612501 is about 11252.2220472225. Note that the first 3 decimals coincide. The cubic root of 126612501 is about 502.1408220134.

The spelling of 126612501 in words is "one hundred twenty-six million, six hundred twelve thousand, five hundred one".