1550094121 has 2 divisors, whose sum is σ = 1550094122. Its totient is φ = 1550094120.

The previous prime is 1550094113. The next prime is 1550094173. The reversal of 1550094121 is 1214900551.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1300612096 + 249482025 = 36064^2 + 15795^2 .

It is a cyclic number.

It is not a de Polignac number, because 1550094121 - 2³ = 1550094113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1550094121.

It is not a weakly prime, because it can be changed into another prime (1550094101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 775047060 + 775047061.

It is an arithmetic number, because the mean of its divisors is an integer number (775047061).

Almost surely, 2^1550094121 is an apocalyptic number.

It is an amenable number.

1550094121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1550094121 is an equidigital number, since it uses as much as digits as its factorization.

1550094121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 28.

The square root of 1550094121 is about 39371.2346898088. The cubic root of 1550094121 is about 1157.3179516744.

Adding to 1550094121 its reverse (1214900551), we get a palindrome (2764994672).

The spelling of 1550094121 in words is "one billion, five hundred fifty million, ninety-four thousand, one hundred twenty-one".