1254012142 has 32 divisors (see below), whose sum is σ = 2000376000. Its totient is φ = 588537600.

The previous prime is 1254012131. The next prime is 1254012143. The reversal of 1254012142 is 2412104521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1254012143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 829167 + ... + 830677.

It is an arithmetic number, because the mean of its divisors is an integer number (62511750).

Almost surely, 2^1254012142 is an apocalyptic number.

1254012142 is a deficient number, since it is larger than the sum of its proper divisors (746363858).

1254012142 is a wasteful number, since it uses less digits than its factorization.

1254012142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1932.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 1254012142 is about 35412.0338585628. The cubic root of 1254012142 is about 1078.3686338448.

Adding to 1254012142 its reverse (2412104521), we get a palindrome (3666116663).

The spelling of 1254012142 in words is "one billion, two hundred fifty-four million, twelve thousand, one hundred forty-two".