142238097 has 24 divisors (see below), whose sum is σ = 208336128. Its totient is φ = 93506400.

The previous prime is 142238093. The next prime is 142238113. The reversal of 142238097 is 790832241.

It is not a de Polignac number, because 142238097 - 2² = 142238093 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142238093) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 262647 + ... + 263187.

It is an arithmetic number, because the mean of its divisors is an integer number (8680672).

Almost surely, 2^142238097 is an apocalyptic number.

142238097 is the 9738-th pentagonal number.

It is an amenable number.

142238097 is a deficient number, since it is larger than the sum of its proper divisors (66098031).

142238097 is a wasteful number, since it uses less digits than its factorization.

142238097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 901 (or 898 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 142238097 is about 11926.3614317192. The cubic root of 142238097 is about 522.0017725751.

The spelling of 142238097 in words is "one hundred forty-two million, two hundred thirty-eight thousand, ninety-seven".