137448251 has 2 divisors, whose sum is σ = 137448252. Its totient is φ = 137448250.

The previous prime is 137448221. The next prime is 137448263. The reversal of 137448251 is 152844731.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 137448251 - 2⁶ = 137448187 is a prime.

It is not a weakly prime, because it can be changed into another prime (137448211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68724125 + 68724126.

It is an arithmetic number, because the mean of its divisors is an integer number (68724126).

Almost surely, 2^137448251 is an apocalyptic number.

137448251 is a deficient number, since it is larger than the sum of its proper divisors (1).

137448251 is an equidigital number, since it uses as much as digits as its factorization.

137448251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26880, while the sum is 35.

The square root of 137448251 is about 11723.8326071298. The cubic root of 137448251 is about 516.0752987383.

The spelling of 137448251 in words is "one hundred thirty-seven million, four hundred forty-eight thousand, two hundred fifty-one".