137679953 has 2 divisors, whose sum is σ = 137679954. Its totient is φ = 137679952.

The previous prime is 137679943. The next prime is 137679973. The reversal of 137679953 is 359976731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 133448704 + 4231249 = 11552^2 + 2057^2 .

It is a cyclic number.

It is not a de Polignac number, because 137679953 - 2⁸ = 137679697 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (137679943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68839976 + 68839977.

It is an arithmetic number, because the mean of its divisors is an integer number (68839977).

Almost surely, 2^137679953 is an apocalyptic number.

It is an amenable number.

137679953 is a deficient number, since it is larger than the sum of its proper divisors (1).

137679953 is an equidigital number, since it uses as much as digits as its factorization.

137679953 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1071630, while the sum is 50.

The square root of 137679953 is about 11733.7101123217. The cubic root of 137679953 is about 516.3651255147.

The spelling of 137679953 in words is "one hundred thirty-seven million, six hundred seventy-nine thousand, nine hundred fifty-three".