1550022151 has 2 divisors, whose sum is σ = 1550022152. Its totient is φ = 1550022150.

The previous prime is 1550022127. The next prime is 1550022163. The reversal of 1550022151 is 1512200551.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (1512200551) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1550022151 - 2⁵ = 1550022119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1550022191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 775011075 + 775011076.

It is an arithmetic number, because the mean of its divisors is an integer number (775011076).

Almost surely, 2^1550022151 is an apocalyptic number.

1550022151 is a deficient number, since it is larger than the sum of its proper divisors (1).

1550022151 is an equidigital number, since it uses as much as digits as its factorization.

1550022151 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 500, while the sum is 22.

The square root of 1550022151 is about 39370.3206870353. The cubic root of 1550022151 is about 1157.3000401896.

The spelling of 1550022151 in words is "one billion, five hundred fifty million, twenty-two thousand, one hundred fifty-one".