126513151 has 2 divisors, whose sum is σ = 126513152. Its totient is φ = 126513150.

The previous prime is 126513137. The next prime is 126513193. The reversal of 126513151 is 151315621.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 126513151 - 2¹⁵ = 126480383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126523151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63256575 + 63256576.

It is an arithmetic number, because the mean of its divisors is an integer number (63256576).

Almost surely, 2^126513151 is an apocalyptic number.

126513151 is a deficient number, since it is larger than the sum of its proper divisors (1).

126513151 is an equidigital number, since it uses as much as digits as its factorization.

126513151 is an evil number, because the sum of its binary digits is even.

The product of its digits is 900, while the sum is 25.

The square root of 126513151 is about 11247.8064972687. The cubic root of 126513151 is about 502.0094480849.

Adding to 126513151 its reverse (151315621), we get a palindrome (277828772).

The spelling of 126513151 in words is "one hundred twenty-six million, five hundred thirteen thousand, one hundred fifty-one".