142154634 has 8 divisors (see below), whose sum is σ = 284309280. Its totient is φ = 47384876.

The previous prime is 142154633. The next prime is 142154647. The reversal of 142154634 is 436451241.

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

142154634 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (142154633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11846214 + ... + 11846225.

It is an arithmetic number, because the mean of its divisors is an integer number (35538660).

Almost surely, 2^142154634 is an apocalyptic number.

142154634 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

142154634 is a wasteful number, since it uses less digits than its factorization.

142154634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23692444.

The product of its digits is 11520, while the sum is 30.

The square root of 142154634 is about 11922.8618208885. The cubic root of 142154634 is about 521.8996518839.

The spelling of 142154634 in words is "one hundred forty-two million, one hundred fifty-four thousand, six hundred thirty-four".