137956229 has 2 divisors, whose sum is σ = 137956230. Its totient is φ = 137956228.

The previous prime is 137956201. The next prime is 137956237. The reversal of 137956229 is 922659731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 136843204 + 1113025 = 11698^2 + 1055^2 .

It is a cyclic number.

It is not a de Polignac number, because 137956229 - 2⁸ = 137955973 is a prime.

It is a super-2 number, since 2×137956229² = 38063842239800882, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 137956229.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137956279) 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, 68978114 + 68978115.

It is an arithmetic number, because the mean of its divisors is an integer number (68978115).

Almost surely, 2^137956229 is an apocalyptic number.

It is an amenable number.

137956229 is a deficient number, since it is larger than the sum of its proper divisors (1).

137956229 is an equidigital number, since it uses as much as digits as its factorization.

137956229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 204120, while the sum is 44.

The square root of 137956229 is about 11745.4769592384. The cubic root of 137956229 is about 516.7102834261.

The spelling of 137956229 in words is "one hundred thirty-seven million, nine hundred fifty-six thousand, two hundred twenty-nine".