134262221251 has 2 divisors, whose sum is σ = 134262221252. Its totient is φ = 134262221250.

The previous prime is 134262221237. The next prime is 134262221293. The reversal of 134262221251 is 152122262431.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-134262221251 is a prime.

It is not a weakly prime, because it can be changed into another prime (134262221351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67131110625 + 67131110626.

It is an arithmetic number, because the mean of its divisors is an integer number (67131110626).

Almost surely, 2^134262221251 is an apocalyptic number.

134262221251 is a deficient number, since it is larger than the sum of its proper divisors (1).

134262221251 is an equidigital number, since it uses as much as digits as its factorization.

134262221251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11520, while the sum is 31.

Adding to 134262221251 its reverse (152122262431), we get a palindrome (286384483682).

The spelling of 134262221251 in words is "one hundred thirty-four billion, two hundred sixty-two million, two hundred twenty-one thousand, two hundred fifty-one".