1142110906 has 4 divisors (see below), whose sum is σ = 1713166362. Its totient is φ = 571055452.

The previous prime is 1142110903. The next prime is 1142110969. The reversal of 1142110906 is 6090112411.

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

It can be written as a sum of positive squares in only one way, i.e., 832034025 + 310076881 = 28845^2 + 17609^2 .

It is not an unprimeable number, because it can be changed into a prime (1142110903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 285527725 + ... + 285527728.

Almost surely, 2^1142110906 is an apocalyptic number.

1142110906 is a deficient number, since it is larger than the sum of its proper divisors (571055456).

1142110906 is an equidigital number, since it uses as much as digits as its factorization.

1142110906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571055455.

The product of its (nonzero) digits is 432, while the sum is 25.

The square root of 1142110906 is about 33795.1313949214. The cubic root of 1142110906 is about 1045.2883085366.

The spelling of 1142110906 in words is "one billion, one hundred forty-two million, one hundred ten thousand, nine hundred six".