142154023444 has 6 divisors (see below), whose sum is σ = 248769541034. Its totient is φ = 71077011720.

The previous prime is 142154023439. The next prime is 142154023483. The reversal of 142154023444 is 444320451241.

It can be written as a sum of positive squares in only one way, i.e., 91173802500 + 50980220944 = 301950^2 + 225788^2 .

It is a super-2 number, since 2×142154023444² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 17769252927 + ... + 17769252934.

Almost surely, 2^142154023444 is an apocalyptic number.

It is an amenable number.

142154023444 is a deficient number, since it is larger than the sum of its proper divisors (106615517590).

142154023444 is a wasteful number, since it uses less digits than its factorization.

142154023444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35538505865 (or 35538505863 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 34.

Adding to 142154023444 its reverse (444320451241), we get a palindrome (586474474685).

The spelling of 142154023444 in words is "one hundred forty-two billion, one hundred fifty-four million, twenty-three thousand, four hundred forty-four".