142257737 has 8 divisors (see below), whose sum is σ = 149193600. Its totient is φ = 135384480.

The previous prime is 142257719. The next prime is 142257763. The reversal of 142257737 is 737752241.

142257737 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 142257737 - 2¹⁰ = 142256713 is a prime.

It is a super-2 number, since 2×142257737² = 40474527472722338, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 142257737.

It is not an unprimeable number, because it can be changed into a prime (142257707) 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, 10964 + ... + 20117.

It is an arithmetic number, because the mean of its divisors is an integer number (18649200).

Almost surely, 2^142257737 is an apocalyptic number.

It is an amenable number.

142257737 is a deficient number, since it is larger than the sum of its proper divisors (6935863).

142257737 is a wasteful number, since it uses less digits than its factorization.

142257737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31303.

The product of its digits is 82320, while the sum is 38.

The square root of 142257737 is about 11927.1847893793. The cubic root of 142257737 is about 522.0257971818.

The spelling of 142257737 in words is "one hundred forty-two million, two hundred fifty-seven thousand, seven hundred thirty-seven".