126130077 has 36 divisors (see below), whose sum is σ = 194250420. Its totient is φ = 78769152.

The previous prime is 126130073. The next prime is 126130079. The reversal of 126130077 is 770031621.

It can be written as a sum of positive squares in 6 ways, for example, as 20985561 + 105144516 = 4581^2 + 10254^2 .

It is not a de Polignac number, because 126130077 - 2² = 126130073 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 126130077.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126130073) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 357133 + ... + 357485.

It is an arithmetic number, because the mean of its divisors is an integer number (5395845).

Almost surely, 2^126130077 is an apocalyptic number.

It is an amenable number.

126130077 is a deficient number, since it is larger than the sum of its proper divisors (68120343).

126130077 is a wasteful number, since it uses less digits than its factorization.

126130077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462 (or 422 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 27.

The square root of 126130077 is about 11230.7647557947. The cubic root of 126130077 is about 501.5022512951.

Adding to 126130077 its reverse (770031621), we get a palindrome (896161698).

The spelling of 126130077 in words is "one hundred twenty-six million, one hundred thirty thousand, seventy-seven".