126452870281 has 4 divisors (see below), whose sum is σ = 126454036752. Its totient is φ = 126451703812.

The previous prime is 126452870279. The next prime is 126452870293. The reversal of 126452870281 is 182078254621.

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: 182078254621 = 14057 ⋅12952853.

It is a cyclic number.

It is not a de Polignac number, because 126452870281 - 2¹ = 126452870279 is a prime.

It is a super-2 number, since 2×126452870281² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126452870221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 401815 + ... + 643708.

It is an arithmetic number, because the mean of its divisors is an integer number (31613509188).

Almost surely, 2^126452870281 is an apocalyptic number.

It is an amenable number.

126452870281 is a deficient number, since it is larger than the sum of its proper divisors (1166471).

126452870281 is a wasteful number, since it uses less digits than its factorization.

126452870281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1166470.

The product of its (nonzero) digits is 430080, while the sum is 46.

The spelling of 126452870281 in words is "one hundred twenty-six billion, four hundred fifty-two million, eight hundred seventy thousand, two hundred eighty-one".