142545701 has 4 divisors (see below), whose sum is σ = 147461100. Its totient is φ = 137630304.

The previous prime is 142545653. The next prime is 142545709. The reversal of 142545701 is 107545241.

142545701 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 107143201 + 35402500 = 10351^2 + 5950^2 .

It is a cyclic number.

It is not a de Polignac number, because 142545701 - 2²² = 138351397 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 4915369 = 142545701 / (1 + 4 + 2 + 5 + 4 + 5 + 7 + 0 + 1).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142545709) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2457656 + ... + 2457713.

It is an arithmetic number, because the mean of its divisors is an integer number (36865275).

Almost surely, 2^142545701 is an apocalyptic number.

It is an amenable number.

142545701 is a deficient number, since it is larger than the sum of its proper divisors (4915399).

142545701 is an equidigital number, since it uses as much as digits as its factorization.

142545701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4915398.

The product of its (nonzero) digits is 5600, while the sum is 29.

The square root of 142545701 is about 11939.2504371087. The cubic root of 142545701 is about 522.3777951882.

The spelling of 142545701 in words is "one hundred forty-two million, five hundred forty-five thousand, seven hundred one".