142471573 has 2 divisors, whose sum is σ = 142471574. Its totient is φ = 142471572.

The previous prime is 142471561. The next prime is 142471603. The reversal of 142471573 is 375174241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 123609924 + 18861649 = 11118^2 + 4343^2 .

It is a cyclic number.

It is not a de Polignac number, because 142471573 - 2⁹ = 142471061 is a prime.

It is a super-2 number, since 2×142471573² = 40596298226188658, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142471673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71235786 + 71235787.

It is an arithmetic number, because the mean of its divisors is an integer number (71235787).

Almost surely, 2^142471573 is an apocalyptic number.

It is an amenable number.

142471573 is a deficient number, since it is larger than the sum of its proper divisors (1).

142471573 is an equidigital number, since it uses as much as digits as its factorization.

142471573 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23520, while the sum is 34.

The square root of 142471573 is about 11936.1456509210. The cubic root of 142471573 is about 522.2872288289.

The spelling of 142471573 in words is "one hundred forty-two million, four hundred seventy-one thousand, five hundred seventy-three".