1225151143 has 8 divisors (see below), whose sum is σ = 1287619200. Its totient is φ = 1163449848.

The previous prime is 1225151129. The next prime is 1225151149. The reversal of 1225151143 is 3411515221.

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

It is a de Polignac number, because none of the positive numbers 2^k-1225151143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225151149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188413 + ... + 194806.

It is an arithmetic number, because the mean of its divisors is an integer number (160952400).

Almost surely, 2^1225151143 is an apocalyptic number.

1225151143 is a deficient number, since it is larger than the sum of its proper divisors (62468057).

1225151143 is a wasteful number, since it uses less digits than its factorization.

1225151143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383381.

The product of its digits is 1200, while the sum is 25.

The square root of 1225151143 is about 35002.1591191172. The cubic root of 1225151143 is about 1070.0314845017.

Adding to 1225151143 its reverse (3411515221), we get a palindrome (4636666364).

The spelling of 1225151143 in words is "one billion, two hundred twenty-five million, one hundred fifty-one thousand, one hundred forty-three".