1142501899 has 8 divisors (see below), whose sum is σ = 1424418048. Its totient is φ = 890261160.

The previous prime is 1142501849. The next prime is 1142501923. The reversal of 1142501899 is 9981052411.

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

It is a cyclic number.

It is not a de Polignac number, because 1142501899 - 2¹¹ = 1142499851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1142501819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7418767 + ... + 7418920.

It is an arithmetic number, because the mean of its divisors is an integer number (178052256).

Almost surely, 2^1142501899 is an apocalyptic number.

1142501899 is a deficient number, since it is larger than the sum of its proper divisors (281916149).

1142501899 is a wasteful number, since it uses less digits than its factorization.

1142501899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14837705.

The product of its (nonzero) digits is 25920, while the sum is 40.

The square root of 1142501899 is about 33800.9156532778. The cubic root of 1142501899 is about 1045.4075771003.

The spelling of 1142501899 in words is "one billion, one hundred forty-two million, five hundred one thousand, eight hundred ninety-nine".