142609149 has 24 divisors (see below), whose sum is σ = 208615680. Its totient is φ = 93871008.

The previous prime is 142609147. The next prime is 142609157. The reversal of 142609149 is 941906241.

It is a happy number.

142609149 is a `hidden beast` number, since 1 + 4 + 2 + 609 + 1 + 49 = 666.

It is not a de Polignac number, because 142609149 - 2¹ = 142609147 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142609147) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 359019 + ... + 359415.

It is an arithmetic number, because the mean of its divisors is an integer number (8692320).

Almost surely, 2^142609149 is an apocalyptic number.

It is an amenable number.

142609149 is a deficient number, since it is larger than the sum of its proper divisors (66006531).

142609149 is a wasteful number, since it uses less digits than its factorization.

142609149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 809 (or 806 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 142609149 is about 11941.9072597303. The cubic root of 142609149 is about 522.4552882537.

It can be divided in two parts, 14260 and 9149, that added together give a square (23409 = 153²).

The spelling of 142609149 in words is "one hundred forty-two million, six hundred nine thousand, one hundred forty-nine".