126513007 has 2 divisors, whose sum is σ = 126513008. Its totient is φ = 126513006.

The previous prime is 126512989. The next prime is 126513043. The reversal of 126513007 is 700315621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 126513007 - 2²³ = 118124399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126513097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63256503 + 63256504.

It is an arithmetic number, because the mean of its divisors is an integer number (63256504).

Almost surely, 2^126513007 is an apocalyptic number.

126513007 is a deficient number, since it is larger than the sum of its proper divisors (1).

126513007 is an equidigital number, since it uses as much as digits as its factorization.

126513007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 126513007 is about 11247.8000960188. The cubic root of 126513007 is about 502.0092576188.

Adding to 126513007 its reverse (700315621), we get a palindrome (826828628).

The spelling of 126513007 in words is "one hundred twenty-six million, five hundred thirteen thousand, seven".