1162142427 has 4 divisors (see below), whose sum is σ = 1549523240. Its totient is φ = 774761616.

The previous prime is 1162142419. The next prime is 1162142437. The reversal of 1162142427 is 7242412611.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1162142427 - 2³ = 1162142419 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1162142394 and 1162142403.

It is not an unprimeable number, because it can be changed into a prime (1162142437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 193690402 + ... + 193690407.

It is an arithmetic number, because the mean of its divisors is an integer number (387380810).

Almost surely, 2^1162142427 is an apocalyptic number.

1162142427 is a deficient number, since it is larger than the sum of its proper divisors (387380813).

1162142427 is an equidigital number, since it uses as much as digits as its factorization.

1162142427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387380812.

The product of its digits is 5376, while the sum is 30.

The square root of 1162142427 is about 34090.2101342893. The cubic root of 1162142427 is about 1051.3640403787.

The spelling of 1162142427 in words is "one billion, one hundred sixty-two million, one hundred forty-two thousand, four hundred twenty-seven".