1352221252 has 6 divisors (see below), whose sum is σ = 2366387198. Its totient is φ = 676110624.

The previous prime is 1352221249. The next prime is 1352221307. The reversal of 1352221252 is 2521222531.

It can be written as a sum of positive squares in only one way, i.e., 1339999236 + 12222016 = 36606^2 + 3496^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 169027653 + ... + 169027660.

Almost surely, 2^1352221252 is an apocalyptic number.

It is an amenable number.

1352221252 is a deficient number, since it is larger than the sum of its proper divisors (1014165946).

1352221252 is a wasteful number, since it uses less digits than its factorization.

1352221252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338055317 (or 338055315 counting only the distinct ones).

The product of its digits is 2400, while the sum is 25.

The square root of 1352221252 is about 36772.5611291898. The cubic root of 1352221252 is about 1105.8152776156.

Adding to 1352221252 its reverse (2521222531), we get a palindrome (3873443783).

The spelling of 1352221252 in words is "one billion, three hundred fifty-two million, two hundred twenty-one thousand, two hundred fifty-two".