1252177228 has 24 divisors (see below), whose sum is σ = 2376806544. Its totient is φ = 574886400.

The previous prime is 1252177193. The next prime is 1252177231. The reversal of 1252177228 is 8227712521.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 221778 + ... + 227353.

It is an arithmetic number, because the mean of its divisors is an integer number (99033606).

Almost surely, 2^1252177228 is an apocalyptic number.

It is an amenable number.

1252177228 is a deficient number, since it is larger than the sum of its proper divisors (1124629316).

1252177228 is a wasteful number, since it uses less digits than its factorization.

1252177228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449193 (or 449191 counting only the distinct ones).

The product of its digits is 31360, while the sum is 37.

The square root of 1252177228 is about 35386.1163169964. The cubic root of 1252177228 is about 1077.8424083190.

Adding to 1252177228 its reverse (8227712521), we get a palindrome (9479889749).

The spelling of 1252177228 in words is "one billion, two hundred fifty-two million, one hundred seventy-seven thousand, two hundred twenty-eight".