126712145 has 16 divisors (see below), whose sum is σ = 175468800. Its totient is φ = 86042304.

The previous prime is 126712123. The next prime is 126712171. The reversal of 126712145 is 541217621.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126712145 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13970 + ... + 21179.

It is an arithmetic number, because the mean of its divisors is an integer number (10966800).

Almost surely, 2^126712145 is an apocalyptic number.

It is an amenable number.

126712145 is a deficient number, since it is larger than the sum of its proper divisors (48756655).

126712145 is a wasteful number, since it uses less digits than its factorization.

126712145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35264.

The product of its digits is 3360, while the sum is 29.

The square root of 126712145 is about 11256.6489240804. The cubic root of 126712145 is about 502.2725156968.

Adding to 126712145 its reverse (541217621), we get a palindrome (667929766).

The spelling of 126712145 in words is "one hundred twenty-six million, seven hundred twelve thousand, one hundred forty-five".