1550579141 has 2 divisors, whose sum is σ = 1550579142. Its totient is φ = 1550579140.

The previous prime is 1550579101. The next prime is 1550579143. The reversal of 1550579141 is 1419750551.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1544097025 + 6482116 = 39295^2 + 2546^2 .

It is an emirp because it is prime and its reverse (1419750551) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1550579141 - 2¹⁸ = 1550316997 is a prime.

Together with 1550579143, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1550579095 and 1550579104.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1550579143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 775289570 + 775289571.

It is an arithmetic number, because the mean of its divisors is an integer number (775289571).

Almost surely, 2^1550579141 is an apocalyptic number.

It is an amenable number.

1550579141 is a deficient number, since it is larger than the sum of its proper divisors (1).

1550579141 is an equidigital number, since it uses as much as digits as its factorization.

1550579141 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31500, while the sum is 38.

The square root of 1550579141 is about 39377.3937812040. The cubic root of 1550579141 is about 1157.4386462418.

The spelling of 1550579141 in words is "one billion, five hundred fifty million, five hundred seventy-nine thousand, one hundred forty-one".