1251134752027 has 24 divisors (see below), whose sum is σ = 1294217606880. Its totient is φ = 1209320407680.

The previous prime is 1251134751991. The next prime is 1251134752039. The reversal of 1251134752027 is 7202574311521.

It is a happy number.

It is not a de Polignac number, because 1251134752027 - 2¹⁵ = 1251134719259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1251134752327) 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 23 ways as a sum of consecutive naturals, for example, 190109877 + ... + 190116457.

It is an arithmetic number, because the mean of its divisors is an integer number (53925733620).

Almost surely, 2^{1251134752027} is an apocalyptic number.

1251134752027 is a deficient number, since it is larger than the sum of its proper divisors (43082854853).

1251134752027 is an frugal number, since it uses more digits than its factorization.

1251134752027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7731 (or 7684 counting only the distinct ones).

The product of its (nonzero) digits is 117600, while the sum is 40.

The spelling of 1251134752027 in words is "one trillion, two hundred fifty-one billion, one hundred thirty-four million, seven hundred fifty-two thousand, twenty-seven".