126513077 has 16 divisors (see below), whose sum is σ = 138086400. Its totient is φ = 115467120.

The previous prime is 126513073. The next prime is 126513089. The reversal of 126513077 is 770315621.

It is a cyclic number.

It is not a de Polignac number, because 126513077 - 2² = 126513073 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126513071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 204074 + ... + 204692.

It is an arithmetic number, because the mean of its divisors is an integer number (8630400).

Almost surely, 2^126513077 is an apocalyptic number.

It is an amenable number.

126513077 is a deficient number, since it is larger than the sum of its proper divisors (11573323).

126513077 is a wasteful number, since it uses less digits than its factorization.

126513077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1016.

The product of its (nonzero) digits is 8820, while the sum is 32.

The square root of 126513077 is about 11247.8032077379. The cubic root of 126513077 is about 502.0093502065.

Adding to 126513077 its reverse (770315621), we get a palindrome (896828698).

The spelling of 126513077 in words is "one hundred twenty-six million, five hundred thirteen thousand, seventy-seven".