1252111133 has 8 divisors (see below), whose sum is σ = 1541059968. Its totient is φ = 990681264.

The previous prime is 1252111123. The next prime is 1252111151. The reversal of 1252111133 is 3311112521.

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

It is a cyclic number.

It is not a de Polignac number, because 1252111133 - 2¹⁸ = 1251848989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252111123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6879641 + ... + 6879822.

It is an arithmetic number, because the mean of its divisors is an integer number (192632496).

Almost surely, 2^1252111133 is an apocalyptic number.

1252111133 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1252111133 is a deficient number, since it is larger than the sum of its proper divisors (288948835).

1252111133 is a wasteful number, since it uses less digits than its factorization.

1252111133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13759483.

The product of its digits is 180, while the sum is 20.

The square root of 1252111133 is about 35385.1823931996. The cubic root of 1252111133 is about 1077.8234436853.

Adding to 1252111133 its reverse (3311112521), we get a palindrome (4563223654).

The spelling of 1252111133 in words is "one billion, two hundred fifty-two million, one hundred eleven thousand, one hundred thirty-three".