126500377 has 4 divisors (see below), whose sum is σ = 127728640. Its totient is φ = 125272116.

The previous prime is 126500371. The next prime is 126500389. The reversal of 126500377 is 773005621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 126500377 - 2³ = 126500369 is a prime.

It is a super-2 number, since 2×126500377² = 32004690762284258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126500371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 613977 + ... + 614182.

It is an arithmetic number, because the mean of its divisors is an integer number (31932160).

Almost surely, 2^126500377 is an apocalyptic number.

It is an amenable number.

126500377 is a deficient number, since it is larger than the sum of its proper divisors (1228263).

126500377 is a wasteful number, since it uses less digits than its factorization.

126500377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1228262.

The product of its (nonzero) digits is 8820, while the sum is 31.

The square root of 126500377 is about 11247.2386388838. The cubic root of 126500377 is about 501.9925515950.

Adding to 126500377 its reverse (773005621), we get a palindrome (899505998).

The spelling of 126500377 in words is "one hundred twenty-six million, five hundred thousand, three hundred seventy-seven".