1550343231 has 6 divisors (see below), whose sum is σ = 2239384680. Its totient is φ = 1033562148.

The previous prime is 1550343191. The next prime is 1550343241. The reversal of 1550343231 is 1323430551.

It is not a de Polignac number, because 1550343231 - 2⁶ = 1550343167 is a prime.

It is a super-2 number, since 2×1550343231² = 4807128267815038722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1550343195 and 1550343204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1550343241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 86130171 + ... + 86130188.

It is an arithmetic number, because the mean of its divisors is an integer number (373230780).

Almost surely, 2^1550343231 is an apocalyptic number.

1550343231 is a deficient number, since it is larger than the sum of its proper divisors (689041449).

1550343231 is a wasteful number, since it uses less digits than its factorization.

1550343231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172260365 (or 172260362 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 1550343231 is about 39374.3981668292. The cubic root of 1550343231 is about 1157.3799444762.

Adding to 1550343231 its reverse (1323430551), we get a palindrome (2873773782).

The spelling of 1550343231 in words is "one billion, five hundred fifty million, three hundred forty-three thousand, two hundred thirty-one".