126450131251 has 8 divisors (see below), whose sum is σ = 127329609600. Its totient is φ = 125571064128.

The previous prime is 126450131243. The next prime is 126450131279. The reversal of 126450131251 is 152131054621.

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

It is a cyclic number.

It is not a de Polignac number, because 126450131251 - 2³ = 126450131243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126450131201) 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, 527710 + ... + 728956.

It is an arithmetic number, because the mean of its divisors is an integer number (15916201200).

Almost surely, 2^126450131251 is an apocalyptic number.

126450131251 is a deficient number, since it is larger than the sum of its proper divisors (879478349).

126450131251 is a wasteful number, since it uses less digits than its factorization.

126450131251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205613.

The product of its (nonzero) digits is 7200, while the sum is 31.

Adding to 126450131251 its reverse (152131054621), we get a palindrome (278581185872).

The spelling of 126450131251 in words is "one hundred twenty-six billion, four hundred fifty million, one hundred thirty-one thousand, two hundred fifty-one".