142919245 has 32 divisors (see below), whose sum is σ = 201535488. Its totient is φ = 95266368.

The previous prime is 142919219. The next prime is 142919251. The reversal of 142919245 is 542919241.

It is not a de Polignac number, because 142919245 - 2¹³ = 142911053 is a prime.

It is a congruent number.

It is an unprimeable number.

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 in 31 ways as a sum of consecutive naturals, for example, 465382 + ... + 465688.

It is an arithmetic number, because the mean of its divisors is an integer number (6297984).

Almost surely, 2^142919245 is an apocalyptic number.

It is an amenable number.

142919245 is a deficient number, since it is larger than the sum of its proper divisors (58616243).

142919245 is a wasteful number, since it uses less digits than its factorization.

142919245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649.

The product of its digits is 25920, while the sum is 37.

The square root of 142919245 is about 11954.8837300912. The cubic root of 142919245 is about 522.8336978428.

The spelling of 142919245 in words is "one hundred forty-two million, nine hundred nineteen thousand, two hundred forty-five".