142152214 has 4 divisors (see below), whose sum is σ = 213228324. Its totient is φ = 71076106.

The previous prime is 142152211. The next prime is 142152233. The reversal of 142152214 is 412251241.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142152211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35538052 + ... + 35538055.

It is an arithmetic number, because the mean of its divisors is an integer number (53307081).

Almost surely, 2^142152214 is an apocalyptic number.

142152214 is a deficient number, since it is larger than the sum of its proper divisors (71076110).

142152214 is an equidigital number, since it uses as much as digits as its factorization.

142152214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71076109.

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

The square root of 142152214 is about 11922.7603347547. The cubic root of 142152214 is about 521.8966903101.

It can be divided in two parts, 1421 and 52214, that added together give a palindrome (53635).

The spelling of 142152214 in words is "one hundred forty-two million, one hundred fifty-two thousand, two hundred fourteen".