1045121042 has 16 divisors (see below), whose sum is σ = 1849431552. Its totient is φ = 433460160.

The previous prime is 1045121017. The next prime is 1045121057. The reversal of 1045121042 is 2401215401.

It is a happy number.

It is an unprimeable number.

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, 1203623 + ... + 1204490.

It is an arithmetic number, because the mean of its divisors is an integer number (115589472).

Almost surely, 2^1045121042 is an apocalyptic number.

1045121042 is a deficient number, since it is larger than the sum of its proper divisors (804310510).

1045121042 is a wasteful number, since it uses less digits than its factorization.

1045121042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2408153.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 1045121042 is about 32328.3318777818. The cubic root of 1045121042 is about 1014.8196406784.

Adding to 1045121042 its reverse (2401215401), we get a palindrome (3446336443).

The spelling of 1045121042 in words is "one billion, forty-five million, one hundred twenty-one thousand, forty-two".