1001142559 has 8 divisors (see below), whose sum is σ = 1032511680. Its totient is φ = 970000416.

The previous prime is 1001142557. The next prime is 1001142673. The reversal of 1001142559 is 9552411001.

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 1001142559 - 2¹ = 1001142557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001142557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47764 + ... + 65449.

It is an arithmetic number, because the mean of its divisors is an integer number (129063960).

Almost surely, 2^1001142559 is an apocalyptic number.

1001142559 is a deficient number, since it is larger than the sum of its proper divisors (31369121).

1001142559 is a wasteful number, since it uses less digits than its factorization.

1001142559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113489.

The product of its (nonzero) digits is 1800, while the sum is 28.

The square root of 1001142559 is about 31640.8368884263. The cubic root of 1001142559 is about 1000.3807080430.

The spelling of 1001142559 in words is "one billion, one million, one hundred forty-two thousand, five hundred fifty-nine".