142726247 has 8 divisors (see below), whose sum is σ = 149576544. Its totient is φ = 135929728.

The previous prime is 142726229. The next prime is 142726249. The reversal of 142726247 is 742627241.

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 142726247 - 2⁸ = 142725991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142726249) 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, 7958 + ... + 18675.

It is an arithmetic number, because the mean of its divisors is an integer number (18697068).

Almost surely, 2^142726247 is an apocalyptic number.

142726247 is a deficient number, since it is larger than the sum of its proper divisors (6850297).

142726247 is a wasteful number, since it uses less digits than its factorization.

142726247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26889.

The product of its digits is 37632, while the sum is 35.

The square root of 142726247 is about 11946.8090718819. The cubic root of 142726247 is about 522.5982471326.

The spelling of 142726247 in words is "one hundred forty-two million, seven hundred twenty-six thousand, two hundred forty-seven".