142669554 has 8 divisors (see below), whose sum is σ = 285339120. Its totient is φ = 47556516.

The previous prime is 142669517. The next prime is 142669561. The reversal of 142669554 is 455966241.

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

142669554 is an admirable number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 11889124 + ... + 11889135.

It is an arithmetic number, because the mean of its divisors is an integer number (35667390).

Almost surely, 2^142669554 is an apocalyptic number.

142669554 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142669554 is a wasteful number, since it uses less digits than its factorization.

142669554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23778264.

The product of its digits is 259200, while the sum is 42.

The square root of 142669554 is about 11944.4361105914. The cubic root of 142669554 is about 522.5290433556.

The spelling of 142669554 in words is "one hundred forty-two million, six hundred sixty-nine thousand, five hundred fifty-four".