1142214231 has 8 divisors (see below), whose sum is σ = 1529489520. Its totient is φ = 758207552.

The previous prime is 1142214223. The next prime is 1142214239. The reversal of 1142214231 is 1324122411.

It is an interprime number because it is at equal distance from previous prime (1142214223) and next prime (1142214239).

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 1142214231 - 2³ = 1142214223 is a prime.

It is a super-2 number, since 2×1142214231² = 2609306698997842722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1142214198 and 1142214207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142214239) 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, 816336 + ... + 817733.

It is an arithmetic number, because the mean of its divisors is an integer number (191186190).

Almost surely, 2^1142214231 is an apocalyptic number.

1142214231 is a deficient number, since it is larger than the sum of its proper divisors (387275289).

1142214231 is a wasteful number, since it uses less digits than its factorization.

1142214231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1634305.

The product of its digits is 384, while the sum is 21.

The square root of 1142214231 is about 33796.6600568754. The cubic root of 1142214231 is about 1045.3198294561.

Adding to 1142214231 its reverse (1324122411), we get a palindrome (2466336642).

The spelling of 1142214231 in words is "one billion, one hundred forty-two million, two hundred fourteen thousand, two hundred thirty-one".