142111450 has 96 divisors (see below), whose sum is σ = 308730240. Its totient is φ = 48211200.

The previous prime is 142111439. The next prime is 142111451. The reversal of 142111450 is 54111241.

142111450 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×142111450² = 40391328442205000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (142111451) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 456795 + ... + 457105.

It is an arithmetic number, because the mean of its divisors is an integer number (3215940).

Almost surely, 2^142111450 is an apocalyptic number.

142111450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142111450 is an abundant number, since it is smaller than the sum of its proper divisors (166618790).

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

142111450 is a wasteful number, since it uses less digits than its factorization.

142111450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392 (or 387 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 142111450 is about 11921.0507087253. The cubic root of 142111450 is about 521.8467986482.

Adding to 142111450 its reverse (54111241), we get a palindrome (196222691).

The spelling of 142111450 in words is "one hundred forty-two million, one hundred eleven thousand, four hundred fifty".