142211245 has 8 divisors (see below), whose sum is σ = 186167520. Its totient is φ = 103426320.

The previous prime is 142211203. The next prime is 142211249. The reversal of 142211245 is 542112241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 142211245 - 2⁷ = 142211117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142211249) 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, 1292775 + ... + 1292884.

It is an arithmetic number, because the mean of its divisors is an integer number (23270940).

Almost surely, 2^142211245 is an apocalyptic number.

It is an amenable number.

142211245 is a deficient number, since it is larger than the sum of its proper divisors (43956275).

142211245 is a wasteful number, since it uses less digits than its factorization.

142211245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2585675.

The product of its digits is 640, while the sum is 22.

The square root of 142211245 is about 11925.2356370849. The cubic root of 142211245 is about 521.9689223191.

Adding to 142211245 its reverse (542112241), we get a palindrome (684323486).

The spelling of 142211245 in words is "one hundred forty-two million, two hundred eleven thousand, two hundred forty-five".