142753945 has 4 divisors (see below), whose sum is σ = 171304740. Its totient is φ = 114203152.

The previous prime is 142753931. The next prime is 142753951. The reversal of 142753945 is 549357241.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 56115081 + 86638864 = 7491^2 + 9308^2 .

It is a cyclic number.

It is not a de Polignac number, because 142753945 - 2⁷ = 142753817 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 142753898 and 142753907.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14275390 + ... + 14275399.

It is an arithmetic number, because the mean of its divisors is an integer number (42826185).

Almost surely, 2^142753945 is an apocalyptic number.

It is an amenable number.

142753945 is a deficient number, since it is larger than the sum of its proper divisors (28550795).

142753945 is an equidigital number, since it uses as much as digits as its factorization.

142753945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28550794.

The product of its digits is 151200, while the sum is 40.

The square root of 142753945 is about 11947.9682373197. The cubic root of 142753945 is about 522.6320507492.

The spelling of 142753945 in words is "one hundred forty-two million, seven hundred fifty-three thousand, nine hundred forty-five".