142245015 has 32 divisors (see below), whose sum is σ = 248818176. Its totient is φ = 68818560.

The previous prime is 142245011. The next prime is 142245023. The reversal of 142245015 is 510542241.

It is not a de Polignac number, because 142245015 - 2² = 142245011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142245011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 144214 + ... + 145196.

It is an arithmetic number, because the mean of its divisors is an integer number (7775568).

Almost surely, 2^142245015 is an apocalyptic number.

142245015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

142245015 is a deficient number, since it is larger than the sum of its proper divisors (106573161).

142245015 is a wasteful number, since it uses less digits than its factorization.

142245015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1879.

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 142245015 is about 11926.6514579743. The cubic root of 142245015 is about 522.0102352627.

Adding to 142245015 its reverse (510542241), we get a palindrome (652787256).

The spelling of 142245015 in words is "one hundred forty-two million, two hundred forty-five thousand, fifteen".