251254452133 has 2 divisors, whose sum is σ = 251254452134. Its totient is φ = 251254452132.

The previous prime is 251254452131. The next prime is 251254452167. The reversal of 251254452133 is 331254452152.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 186069724164 + 65184727969 = 431358^2 + 255313^2 .

It is a cyclic number.

It is not a de Polignac number, because 251254452133 - 2¹ = 251254452131 is a prime.

Together with 251254452131, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 251254452092 and 251254452101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (251254452131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125627226066 + 125627226067.

It is an arithmetic number, because the mean of its divisors is an integer number (125627226067).

Almost surely, 2^251254452133 is an apocalyptic number.

It is an amenable number.

251254452133 is a deficient number, since it is larger than the sum of its proper divisors (1).

251254452133 is an equidigital number, since it uses as much as digits as its factorization.

251254452133 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 144000, while the sum is 37.

The spelling of 251254452133 in words is "two hundred fifty-one billion, two hundred fifty-four million, four hundred fifty-two thousand, one hundred thirty-three".