1142501685 has 24 divisors (see below), whose sum is σ = 1979439264. Its totient is φ = 562461120.

The previous prime is 1142501629. The next prime is 1142501687. The reversal of 1142501685 is 5861052411.

It is not a de Polignac number, because 1142501685 - 2¹⁴ = 1142485301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142501687) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 222811 + ... + 227880.

It is an arithmetic number, because the mean of its divisors is an integer number (82476636).

Almost surely, 2^1142501685 is an apocalyptic number.

1142501685 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1142501685 is a deficient number, since it is larger than the sum of its proper divisors (836937579).

1142501685 is a wasteful number, since it uses less digits than its factorization.

1142501685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450725 (or 450712 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 33.

The square root of 1142501685 is about 33800.9124876829. The cubic root of 1142501685 is about 1045.4075118292.

The spelling of 1142501685 in words is "one billion, one hundred forty-two million, five hundred one thousand, six hundred eighty-five".