142105545 has 24 divisors (see below), whose sum is σ = 249290496. Its totient is φ = 74874528.

The previous prime is 142105517. The next prime is 142105553. The reversal of 142105545 is 545501241.

142105545 is a `hidden beast` number, since 14 + 2 + 105 + 545 = 666.

142105545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 142105545 - 2¹⁶ = 142040009 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15289 + ... + 22758.

It is an arithmetic number, because the mean of its divisors is an integer number (10387104).

Almost surely, 2^142105545 is an apocalyptic number.

142105545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

142105545 is a deficient number, since it is larger than the sum of its proper divisors (107184951).

142105545 is a wasteful number, since it uses less digits than its factorization.

142105545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38141 (or 38138 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 142105545 is about 11920.8030350308. The cubic root of 142105545 is about 521.8395706403.

Adding to 142105545 its reverse (545501241), we get a palindrome (687606786).

The spelling of 142105545 in words is "one hundred forty-two million, one hundred five thousand, five hundred forty-five".