142976545 has 16 divisors (see below), whose sum is σ = 183547728. Its totient is φ = 106536960.

The previous prime is 142976543. The next prime is 142976551. The reversal of 142976545 is 545679241.

It can be written as a sum of positive squares in 8 ways, for example, as 11209104 + 131767441 = 3348^2 + 11479^2 .

It is not a de Polignac number, because 142976545 - 2¹ = 142976543 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142976543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 426 + ... + 16915.

It is an arithmetic number, because the mean of its divisors is an integer number (11471733).

Almost surely, 2^142976545 is an apocalyptic number.

It is an amenable number.

142976545 is a deficient number, since it is larger than the sum of its proper divisors (40571183).

142976545 is a wasteful number, since it uses less digits than its factorization.

142976545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17460.

The product of its digits is 302400, while the sum is 43.

The square root of 142976545 is about 11957.2800000669. The cubic root of 142976545 is about 522.9035609977.

The spelling of 142976545 in words is "one hundred forty-two million, nine hundred seventy-six thousand, five hundred forty-five".