1262161204 has 6 divisors (see below), whose sum is σ = 2208782114. Its totient is φ = 631080600.

The previous prime is 1262161189. The next prime is 1262161211. The reversal of 1262161204 is 4021612621.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 835325604 + 426835600 = 28902^2 + 20660^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157770147 + ... + 157770154.

Almost surely, 2^1262161204 is an apocalyptic number.

It is an amenable number.

1262161204 is a deficient number, since it is larger than the sum of its proper divisors (946620910).

1262161204 is a wasteful number, since it uses less digits than its factorization.

1262161204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315540305 (or 315540303 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 1262161204 is about 35526.9081683166. The cubic root of 1262161204 is about 1080.6994794291.

Adding to 1262161204 its reverse (4021612621), we get a palindrome (5283773825).

The spelling of 1262161204 in words is "one billion, two hundred sixty-two million, one hundred sixty-one thousand, two hundred four".