137798933 has 2 divisors, whose sum is σ = 137798934. Its totient is φ = 137798932.

The previous prime is 137798897. The next prime is 137798951. The reversal of 137798933 is 339897731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 136375684 + 1423249 = 11678^2 + 1193^2 .

It is a cyclic number.

It is not a de Polignac number, because 137798933 - 2¹² = 137794837 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137798953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68899466 + 68899467.

It is an arithmetic number, because the mean of its divisors is an integer number (68899467).

Almost surely, 2^137798933 is an apocalyptic number.

It is an amenable number.

137798933 is a deficient number, since it is larger than the sum of its proper divisors (1).

137798933 is an equidigital number, since it uses as much as digits as its factorization.

137798933 is an evil number, because the sum of its binary digits is even.

The product of its digits is 857304, while the sum is 50.

The square root of 137798933 is about 11738.7790250946. The cubic root of 137798933 is about 516.5138264990.

The spelling of 137798933 in words is "one hundred thirty-seven million, seven hundred ninety-eight thousand, nine hundred thirty-three".