149247771833 has 2 divisors, whose sum is σ = 149247771834. Its totient is φ = 149247771832.

The previous prime is 149247771787. The next prime is 149247771847. The reversal of 149247771833 is 338177742941.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 111684292864 + 37563478969 = 334192^2 + 193813^2 .

It is a cyclic number.

It is not a de Polignac number, because 149247771833 - 2¹⁸ = 149247509689 is a prime.

It is not a weakly prime, because it can be changed into another prime (149247771133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74623885916 + 74623885917.

It is an arithmetic number, because the mean of its divisors is an integer number (74623885917).

Almost surely, 2^149247771833 is an apocalyptic number.

It is an amenable number.

149247771833 is a deficient number, since it is larger than the sum of its proper divisors (1).

149247771833 is an equidigital number, since it uses as much as digits as its factorization.

149247771833 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7112448, while the sum is 56.

The spelling of 149247771833 in words is "one hundred forty-nine billion, two hundred forty-seven million, seven hundred seventy-one thousand, eight hundred thirty-three".