142421054 has 16 divisors (see below), whose sum is σ = 216108000. Its totient is φ = 70389984.

The previous prime is 142421051. The next prime is 142421113. The reversal of 142421054 is 450124241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142421051) 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, 67199 + ... + 69285.

It is an arithmetic number, because the mean of its divisors is an integer number (13506750).

Almost surely, 2^142421054 is an apocalyptic number.

142421054 is a deficient number, since it is larger than the sum of its proper divisors (73686946).

142421054 is a wasteful number, since it uses less digits than its factorization.

142421054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2467.

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 142421054 is about 11934.0292441405. The cubic root of 142421054 is about 522.2254889154.

Adding to 142421054 its reverse (450124241), we get a palindrome (592545295).

It can be divided in two parts, 1424 and 21054, that multiplied together give a triangular number (29980896 = T₇₇₄₃).

The spelling of 142421054 in words is "one hundred forty-two million, four hundred twenty-one thousand, fifty-four".