142442154 has 24 divisors (see below), whose sum is σ = 309106980. Its totient is φ = 47406528.

The previous prime is 142442147. The next prime is 142442161. The reversal of 142442154 is 451244241.

It is an interprime number because it is at equal distance from previous prime (142442147) and next prime (142442161).

It can be written as a sum of positive squares in 2 ways, for example, as 83229129 + 59213025 = 9123^2 + 7695^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6342 + ... + 18030.

Almost surely, 2^142442154 is an apocalyptic number.

142442154 is an abundant number, since it is smaller than the sum of its proper divisors (166664826).

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

142442154 is a wasteful number, since it uses less digits than its factorization.

142442154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12374 (or 12371 counting only the distinct ones).

The product of its digits is 5120, while the sum is 27.

The square root of 142442154 is about 11934.9132380592. The cubic root of 142442154 is about 522.2512772695.

Adding to 142442154 its reverse (451244241), we get a palindrome (593686395).

The spelling of 142442154 in words is "one hundred forty-two million, four hundred forty-two thousand, one hundred fifty-four".