126531200247 has 8 divisors (see below), whose sum is σ = 169591557120. Its totient is φ = 83912488440.

The previous prime is 126531200239. The next prime is 126531200267. The reversal of 126531200247 is 742002135621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 126531200247 - 2³ = 126531200239 is a prime.

It is a super-2 number, since 2×126531200247² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126531200267) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110410597 + ... + 110411742.

It is an arithmetic number, because the mean of its divisors is an integer number (21198944640).

Almost surely, 2^126531200247 is an apocalyptic number.

126531200247 is a deficient number, since it is larger than the sum of its proper divisors (43060356873).

126531200247 is a wasteful number, since it uses less digits than its factorization.

126531200247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220822533.

The product of its (nonzero) digits is 20160, while the sum is 33.

Adding to 126531200247 its reverse (742002135621), we get a palindrome (868533335868).

The spelling of 126531200247 in words is "one hundred twenty-six billion, five hundred thirty-one million, two hundred thousand, two hundred forty-seven".