142305454 has 16 divisors (see below), whose sum is σ = 217558656. Its totient is φ = 69795000.

The previous prime is 142305433. The next prime is 142305461. The reversal of 142305454 is 454503241.

142305454 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×142305454² = 40501684476292232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31519 + ... + 35749.

It is an arithmetic number, because the mean of its divisors is an integer number (13597416).

Almost surely, 2^142305454 is an apocalyptic number.

142305454 is a deficient number, since it is larger than the sum of its proper divisors (75253202).

142305454 is a wasteful number, since it uses less digits than its factorization.

142305454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4551.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 142305454 is about 11929.1849679683. The cubic root of 142305454 is about 522.0841577342.

Adding to 142305454 its reverse (454503241), we get a palindrome (596808695).

The spelling of 142305454 in words is "one hundred forty-two million, three hundred five thousand, four hundred fifty-four".