137950181 has 2 divisors, whose sum is σ = 137950182. Its totient is φ = 137950180.

The previous prime is 137950157. The next prime is 137950229. The reversal of 137950181 is 181059731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 88529281 + 49420900 = 9409^2 + 7030^2 .

It is a cyclic number.

It is not a de Polignac number, because 137950181 - 2¹⁴ = 137933797 is a prime.

It is a super-2 number, since 2×137950181² = 38060504875865522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137950151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68975090 + 68975091.

It is an arithmetic number, because the mean of its divisors is an integer number (68975091).

Almost surely, 2^137950181 is an apocalyptic number.

It is an amenable number.

137950181 is a deficient number, since it is larger than the sum of its proper divisors (1).

137950181 is an equidigital number, since it uses as much as digits as its factorization.

137950181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 35.

The square root of 137950181 is about 11745.2194956076. The cubic root of 137950181 is about 516.7027324575.

The spelling of 137950181 in words is "one hundred thirty-seven million, nine hundred fifty thousand, one hundred eighty-one".