142945215 has 16 divisors (see below), whose sum is σ = 261385728. Its totient is φ = 65346336.

The previous prime is 142945213. The next prime is 142945217. The reversal of 142945215 is 512549241.

It is an interprime number because it is at equal distance from previous prime (142945213) and next prime (142945217).

It is not a de Polignac number, because 142945215 - 2¹ = 142945213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142945211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 680587 + ... + 680796.

It is an arithmetic number, because the mean of its divisors is an integer number (16336608).

Almost surely, 2^142945215 is an apocalyptic number.

142945215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

142945215 is a deficient number, since it is larger than the sum of its proper divisors (118440513).

142945215 is a wasteful number, since it uses less digits than its factorization.

142945215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1361398.

The product of its digits is 14400, while the sum is 33.

The square root of 142945215 is about 11955.9698477372. The cubic root of 142945215 is about 522.8653641375.

The spelling of 142945215 in words is "one hundred forty-two million, nine hundred forty-five thousand, two hundred fifteen".