142333157 has 4 divisors (see below), whose sum is σ = 142544076. Its totient is φ = 142122240.

The previous prime is 142333133. The next prime is 142333159. The reversal of 142333157 is 751333241.

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 127938721 + 14394436 = 11311^2 + 3794^2 .

It is a cyclic number.

It is not a de Polignac number, because 142333157 - 2¹⁰ = 142332133 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 (142333159) 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, 104444 + ... + 105797.

It is an arithmetic number, because the mean of its divisors is an integer number (35636019).

Almost surely, 2^142333157 is an apocalyptic number.

It is an amenable number.

142333157 is a deficient number, since it is larger than the sum of its proper divisors (210919).

142333157 is an equidigital number, since it uses as much as digits as its factorization.

142333157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210918.

The product of its digits is 7560, while the sum is 29.

The square root of 142333157 is about 11930.3460553330. The cubic root of 142333157 is about 522.1180340629.

Adding to 142333157 its reverse (751333241), we get a palindrome (893666398).

The spelling of 142333157 in words is "one hundred forty-two million, three hundred thirty-three thousand, one hundred fifty-seven".