137752529 has 2 divisors, whose sum is σ = 137752530. Its totient is φ = 137752528.

The previous prime is 137752501. The next prime is 137752553. The reversal of 137752529 is 925257731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 88078225 + 49674304 = 9385^2 + 7048^2 .

It is a cyclic number.

It is not a de Polignac number, because 137752529 - 2⁸ = 137752273 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (137751529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68876264 + 68876265.

It is an arithmetic number, because the mean of its divisors is an integer number (68876265).

Almost surely, 2^137752529 is an apocalyptic number.

It is an amenable number.

137752529 is a deficient number, since it is larger than the sum of its proper divisors (1).

137752529 is an equidigital number, since it uses as much as digits as its factorization.

137752529 is an evil number, because the sum of its binary digits is even.

The product of its digits is 132300, while the sum is 41.

The square root of 137752529 is about 11736.8023328332. The cubic root of 137752529 is about 516.4558410511.

The spelling of 137752529 in words is "one hundred thirty-seven million, seven hundred fifty-two thousand, five hundred twenty-nine".