1550145244 has 12 divisors (see below), whose sum is σ = 2737642600. Its totient is φ = 767961648.

The previous prime is 1550145199. The next prime is 1550145257. The reversal of 1550145244 is 4425410551.

It is a happy number.

It is a super-4 number, since 4×1550145244⁴ (a number of 38 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1777254 + ... + 1778125.

Almost surely, 2^1550145244 is an apocalyptic number.

It is an amenable number.

1550145244 is a deficient number, since it is larger than the sum of its proper divisors (1187497356).

1550145244 is a wasteful number, since it uses less digits than its factorization.

1550145244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3555492 (or 3555490 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 31.

The square root of 1550145244 is about 39371.8839274932. The cubic root of 1550145244 is about 1157.3306745396.

Adding to 1550145244 its reverse (4425410551), we get a palindrome (5975555795).

The spelling of 1550145244 in words is "one billion, five hundred fifty million, one hundred forty-five thousand, two hundred forty-four".