142911804 has 72 divisors (see below), whose sum is σ = 387891840. Its totient is φ = 40116384.

The previous prime is 142911803. The next prime is 142911841. The reversal of 142911804 is 408119241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142911803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 376887 + ... + 377265.

Almost surely, 2^142911804 is an apocalyptic number.

142911804 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142911804, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (193945920).

142911804 is an abundant number, since it is smaller than the sum of its proper divisors (244980036).

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

142911804 is a wasteful number, since it uses less digits than its factorization.

142911804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527 (or 458 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 142911804 is about 11954.5725143143. The cubic root of 142911804 is about 522.8246240168.

The spelling of 142911804 in words is "one hundred forty-two million, nine hundred eleven thousand, eight hundred four".