142205245 has 32 divisors (see below), whose sum is σ = 215728128. Its totient is φ = 87568128.

The previous prime is 142205227. The next prime is 142205263. The reversal of 142205245 is 542502241.

It is an interprime number because it is at equal distance from previous prime (142205227) and next prime (142205263).

It is a cyclic number.

It is not a de Polignac number, because 142205245 - 2⁷ = 142205117 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12612 + ... + 21058.

It is an arithmetic number, because the mean of its divisors is an integer number (6741504).

Almost surely, 2^142205245 is an apocalyptic number.

It is an amenable number.

142205245 is a deficient number, since it is larger than the sum of its proper divisors (73522883).

142205245 is a wasteful number, since it uses less digits than its factorization.

142205245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8509.

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 142205245 is about 11924.9840670753. The cubic root of 142205245 is about 521.9615814613.

Adding to 142205245 its reverse (542502241), we get a palindrome (684707486).

The spelling of 142205245 in words is "one hundred forty-two million, two hundred five thousand, two hundred forty-five".