142501477 has 4 divisors (see below), whose sum is σ = 143808940. Its totient is φ = 141194016.

The previous prime is 142501459. The next prime is 142501487. The reversal of 142501477 is 774105241.

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 114896961 + 27604516 = 10719^2 + 5254^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142501477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142501417) 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, 653568 + ... + 653785.

It is an arithmetic number, because the mean of its divisors is an integer number (35952235).

Almost surely, 2^142501477 is an apocalyptic number.

It is an amenable number.

142501477 is a deficient number, since it is larger than the sum of its proper divisors (1307463).

142501477 is a wasteful number, since it uses less digits than its factorization.

142501477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1307462.

The product of its (nonzero) digits is 7840, while the sum is 31.

The square root of 142501477 is about 11937.3982508753. The cubic root of 142501477 is about 522.3237680120.

The spelling of 142501477 in words is "one hundred forty-two million, five hundred one thousand, four hundred seventy-seven".