1550146228 has 12 divisors (see below), whose sum is σ = 2786073892. Its totient is φ = 754125120.

The previous prime is 1550146183. The next prime is 1550146231. The reversal of 1550146228 is 8226410551.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1105695504 + 444450724 = 33252^2 + 21082^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1550146193 and 1550146202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5236833 + ... + 5237128.

Almost surely, 2^1550146228 is an apocalyptic number.

It is an amenable number.

1550146228 is a deficient number, since it is larger than the sum of its proper divisors (1235927664).

1550146228 is a wasteful number, since it uses less digits than its factorization.

1550146228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10474002 (or 10474000 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 34.

The square root of 1550146228 is about 39371.8964237183. The cubic root of 1550146228 is about 1157.3309194227.

Adding to 1550146228 its reverse (8226410551), we get a palindrome (9776556779).

The spelling of 1550146228 in words is "one billion, five hundred fifty million, one hundred forty-six thousand, two hundred twenty-eight".