142807545 has 48 divisors (see below), whose sum is σ = 257467392. Its totient is φ = 73146240.

The previous prime is 142807537. The next prime is 142807547. The reversal of 142807545 is 545708241.

It is not a de Polignac number, because 142807545 - 2³ = 142807537 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (142807547) 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, 232659 + ... + 233271.

It is an arithmetic number, because the mean of its divisors is an integer number (5363904).

Almost surely, 2^142807545 is an apocalyptic number.

142807545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

142807545 is a deficient number, since it is larger than the sum of its proper divisors (114659847).

142807545 is a wasteful number, since it uses less digits than its factorization.

142807545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 822 (or 819 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 36.

The square root of 142807545 is about 11950.2110860018. The cubic root of 142807545 is about 522.6974536648.

The spelling of 142807545 in words is "one hundred forty-two million, eight hundred seven thousand, five hundred forty-five".