137450669 has 2 divisors, whose sum is σ = 137450670. Its totient is φ = 137450668.

The previous prime is 137450647. The next prime is 137450681. The reversal of 137450669 is 966054731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 113145769 + 24304900 = 10637^2 + 4930^2 .

It is a cyclic number.

It is not a de Polignac number, because 137450669 - 2⁸ = 137450413 is a prime.

It is a super-3 number, since 3×137450669³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137450639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68725334 + 68725335.

It is an arithmetic number, because the mean of its divisors is an integer number (68725335).

Almost surely, 2^137450669 is an apocalyptic number.

It is an amenable number.

137450669 is a deficient number, since it is larger than the sum of its proper divisors (1).

137450669 is an equidigital number, since it uses as much as digits as its factorization.

137450669 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 137450669 is about 11723.9357299501. The cubic root of 137450669 is about 516.0783249990.

The spelling of 137450669 in words is "one hundred thirty-seven million, four hundred fifty thousand, six hundred sixty-nine".