1000550149 has 2 divisors, whose sum is σ = 1000550150. Its totient is φ = 1000550148.

The previous prime is 1000550123. The next prime is 1000550153. The reversal of 1000550149 is 9410550001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 811680100 + 188870049 = 28490^2 + 13743^2 .

It is a cyclic number.

It is not a de Polignac number, because 1000550149 - 2¹⁵ = 1000517381 is a prime.

It is a super-2 number, since 2×1000550149² = 2002201201327844402, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1000550119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500275074 + 500275075.

It is an arithmetic number, because the mean of its divisors is an integer number (500275075).

Almost surely, 2^1000550149 is an apocalyptic number.

It is an amenable number.

1000550149 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000550149 is an equidigital number, since it uses as much as digits as its factorization.

1000550149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 900, while the sum is 25.

The square root of 1000550149 is about 31631.4740250909. The cubic root of 1000550149 is about 1000.1833493809.

The spelling of 1000550149 in words is "one billion, five hundred fifty thousand, one hundred forty-nine".