142149407 has 8 divisors (see below), whose sum is σ = 149693280. Its totient is φ = 134719200.

The previous prime is 142149401. The next prime is 142149409. The reversal of 142149407 is 704941241.

142149407 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 142149407 - 2⁴ = 142149391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142149401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25844 + ... + 30857.

It is an arithmetic number, because the mean of its divisors is an integer number (18711660).

Almost surely, 2^142149407 is an apocalyptic number.

142149407 is a deficient number, since it is larger than the sum of its proper divisors (7543873).

142149407 is a wasteful number, since it uses less digits than its factorization.

142149407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56833.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 142149407 is about 11922.6426181447. The cubic root of 142149407 is about 521.8932550871.

The spelling of 142149407 in words is "one hundred forty-two million, one hundred forty-nine thousand, four hundred seven".