126366361 has 4 divisors (see below), whose sum is σ = 137854224. Its totient is φ = 114878500.

The previous prime is 126366353. The next prime is 126366371. The reversal of 126366361 is 163663621.

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, and also an emirpimes, since its reverse is a distinct semiprime: 163663621 = 11 ⋅14878511.

It is not a de Polignac number, because 126366361 - 2³ = 126366353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126366341) 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, 5743915 + ... + 5743936.

It is an arithmetic number, because the mean of its divisors is an integer number (34463556).

Almost surely, 2^126366361 is an apocalyptic number.

126366361 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

126366361 is a deficient number, since it is larger than the sum of its proper divisors (11487863).

126366361 is a wasteful number, since it uses less digits than its factorization.

126366361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11487862.

The product of its digits is 23328, while the sum is 34.

The square root of 126366361 is about 11241.2793311082. The cubic root of 126366361 is about 501.8152166687.

It can be divided in two parts, 1 and 26366361, that added together give a palindrome (26366362).

The spelling of 126366361 in words is "one hundred twenty-six million, three hundred sixty-six thousand, three hundred sixty-one".