126513158 has 8 divisors (see below), whose sum is σ = 189829920. Its totient is φ = 63236520.

The previous prime is 126513151. The next prime is 126513193. The reversal of 126513158 is 851315621.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126513151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 233 + ... + 15908.

It is an arithmetic number, because the mean of its divisors is an integer number (23728740).

Almost surely, 2^126513158 is an apocalyptic number.

126513158 is a deficient number, since it is larger than the sum of its proper divisors (63316762).

126513158 is a wasteful number, since it uses less digits than its factorization.

126513158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20062.

The product of its digits is 7200, while the sum is 32.

The square root of 126513158 is about 11247.8068084405. The cubic root of 126513158 is about 502.0094573437.

Adding to 126513158 its reverse (851315621), we get a palindrome (977828779).

The spelling of 126513158 in words is "one hundred twenty-six million, five hundred thirteen thousand, one hundred fifty-eight".