1201252126 has 8 divisors (see below), whose sum is σ = 1819372464. Its totient is φ = 594794640.

The previous prime is 1201252109. The next prime is 1201252127. The reversal of 1201252126 is 6212521021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1201252097 and 1201252106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201252127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2915455 + ... + 2915866.

It is an arithmetic number, because the mean of its divisors is an integer number (227421558).

Almost surely, 2^1201252126 is an apocalyptic number.

1201252126 is a deficient number, since it is larger than the sum of its proper divisors (618120338).

1201252126 is a wasteful number, since it uses less digits than its factorization.

1201252126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5831426.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 1201252126 is about 34659.0843214301. The cubic root of 1201252126 is about 1063.0280469321.

Adding to 1201252126 its reverse (6212521021), we get a palindrome (7413773147).

The spelling of 1201252126 in words is "one billion, two hundred one million, two hundred fifty-two thousand, one hundred twenty-six".