1142556717 has 32 divisors (see below), whose sum is σ = 1641378816. Its totient is φ = 705161600.

The previous prime is 1142556661. The next prime is 1142556721. The reversal of 1142556717 is 7176552411.

It is not a de Polignac number, because 1142556717 - 2⁷ = 1142556589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142556797) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 369058 + ... + 372140.

It is an arithmetic number, because the mean of its divisors is an integer number (51293088).

Almost surely, 2^1142556717 is an apocalyptic number.

It is an amenable number.

1142556717 is a deficient number, since it is larger than the sum of its proper divisors (498822099).

1142556717 is a wasteful number, since it uses less digits than its factorization.

1142556717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3281.

The product of its digits is 58800, while the sum is 39.

The square root of 1142556717 is about 33801.7265387435. The cubic root of 1142556717 is about 1045.4242966162.

The spelling of 1142556717 in words is "one billion, one hundred forty-two million, five hundred fifty-six thousand, seven hundred seventeen".