142547557 has 8 divisors (see below), whose sum is σ = 155224800. Its totient is φ = 130387824.

The previous prime is 142547551. The next prime is 142547563. The reversal of 142547557 is 755745241.

It is an interprime number because it is at equal distance from previous prime (142547551) and next prime (142547563).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 142547557 - 2⁷ = 142547429 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 (142547551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128803 + ... + 129904.

It is an arithmetic number, because the mean of its divisors is an integer number (19403100).

Almost surely, 2^142547557 is an apocalyptic number.

It is an amenable number.

142547557 is a deficient number, since it is larger than the sum of its proper divisors (12677243).

142547557 is a wasteful number, since it uses less digits than its factorization.

142547557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258755.

The product of its digits is 196000, while the sum is 40.

The square root of 142547557 is about 11939.3281636782. The cubic root of 142547557 is about 522.3800623651.

The spelling of 142547557 in words is "one hundred forty-two million, five hundred forty-seven thousand, five hundred fifty-seven".