1242034142 has 16 divisors (see below), whose sum is σ = 1966021200. Its totient is φ = 586857600.

The previous prime is 1242034133. The next prime is 1242034159. The reversal of 1242034142 is 2414302421.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 25517 + ... + 55992.

It is an arithmetic number, because the mean of its divisors is an integer number (122876325).

Almost surely, 2^1242034142 is an apocalyptic number.

1242034142 is a deficient number, since it is larger than the sum of its proper divisors (723987058).

1242034142 is a wasteful number, since it uses less digits than its factorization.

1242034142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81931.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 1242034142 is about 35242.5047634245. The cubic root of 1242034142 is about 1074.9242108458.

Adding to 1242034142 its reverse (2414302421), we get a palindrome (3656336563).

The spelling of 1242034142 in words is "one billion, two hundred forty-two million, thirty-four thousand, one hundred forty-two".