1245011142 has 8 divisors (see below), whose sum is σ = 2490022296. Its totient is φ = 415003712.

The previous prime is 1245011123. The next prime is 1245011147. The reversal of 1245011142 is 2411105421.

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

1245011142 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1245011147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103750923 + ... + 103750934.

It is an arithmetic number, because the mean of its divisors is an integer number (311252787).

Almost surely, 2^1245011142 is an apocalyptic number.

1245011142 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1245011142 is a wasteful number, since it uses less digits than its factorization.

1245011142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207501862.

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 1245011142 is about 35284.7154161685. The cubic root of 1245011142 is about 1075.7823450846.

Adding to 1245011142 its reverse (2411105421), we get a palindrome (3656116563).

The spelling of 1245011142 in words is "one billion, two hundred forty-five million, eleven thousand, one hundred forty-two".