142477187 has 8 divisors (see below), whose sum is σ = 150964416. Its totient is φ = 134001792.

The previous prime is 142477183. The next prime is 142477193. The reversal of 142477187 is 781774241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 142477187 - 2² = 142477183 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142477183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38753 + ... + 42269.

It is an arithmetic number, because the mean of its divisors is an integer number (18870552).

Almost surely, 2^142477187 is an apocalyptic number.

142477187 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

142477187 is a deficient number, since it is larger than the sum of its proper divisors (8487229).

142477187 is a wasteful number, since it uses less digits than its factorization.

142477187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5917.

The product of its digits is 87808, while the sum is 41.

The square root of 142477187 is about 11936.3808166462. The cubic root of 142477187 is about 522.2940888688.

The spelling of 142477187 in words is "one hundred forty-two million, four hundred seventy-seven thousand, one hundred eighty-seven".