142421098 has 8 divisors (see below), whose sum is σ = 214205508. Its totient is φ = 71019264.

The previous prime is 142421051. The next prime is 142421113. The reversal of 142421098 is 890124241.

142421098 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 142157929 + 263169 = 11923^2 + 513^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94711 + ... + 96202.

Almost surely, 2^142421098 is an apocalyptic number.

142421098 is a deficient number, since it is larger than the sum of its proper divisors (71784410).

142421098 is a wasteful number, since it uses less digits than its factorization.

142421098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191288.

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 142421098 is about 11934.0310876082. The cubic root of 142421098 is about 522.2255426947.

It can be divided in two parts, 1424 and 21098, that added together give a palindrome (22522).

The spelling of 142421098 in words is "one hundred forty-two million, four hundred twenty-one thousand, ninety-eight".