142088449 has 4 divisors (see below), whose sum is σ = 142278400. Its totient is φ = 141898500.

The previous prime is 142088423. The next prime is 142088467. The reversal of 142088449 is 944880241.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 142088449 - 2⁷ = 142088321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142088249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93849 + ... + 95350.

It is an arithmetic number, because the mean of its divisors is an integer number (35569600).

Almost surely, 2^142088449 is an apocalyptic number.

It is an amenable number.

142088449 is a deficient number, since it is larger than the sum of its proper divisors (189951).

142088449 is an equidigital number, since it uses as much as digits as its factorization.

142088449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189950.

The product of its (nonzero) digits is 73728, while the sum is 40.

The square root of 142088449 is about 11920.0859476767. The cubic root of 142088449 is about 521.8186431739.

The spelling of 142088449 in words is "one hundred forty-two million, eighty-eight thousand, four hundred forty-nine".