1371533228 has 12 divisors (see below), whose sum is σ = 2584812720. Its totient is φ = 633015312.

The previous prime is 1371533227. The next prime is 1371533239. The reversal of 1371533228 is 8223351731.

It is a super-2 number, since 2×1371533228² = 3762206791016199968, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1371533227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13187768 + ... + 13187871.

It is an arithmetic number, because the mean of its divisors is an integer number (215401060).

Almost surely, 2^1371533228 is an apocalyptic number.

It is an amenable number.

1371533228 is a deficient number, since it is larger than the sum of its proper divisors (1213279492).

1371533228 is a wasteful number, since it uses less digits than its factorization.

1371533228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26375656 (or 26375654 counting only the distinct ones).

The product of its digits is 30240, while the sum is 35.

The square root of 1371533228 is about 37034.2169891575. The cubic root of 1371533228 is about 1111.0547094378.

Adding to 1371533228 its reverse (8223351731), we get a palindrome (9594884959).

The spelling of 1371533228 in words is "one billion, three hundred seventy-one million, five hundred thirty-three thousand, two hundred twenty-eight".