142741790 has 8 divisors (see below), whose sum is σ = 256935240. Its totient is φ = 57096712.

The previous prime is 142741759. The next prime is 142741793. The reversal of 142741790 is 97147241.

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

It is a super-2 number, since 2×142741790² = 40750437224808200, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 142741790.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142741793) 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, 7137080 + ... + 7137099.

It is an arithmetic number, because the mean of its divisors is an integer number (32116905).

Almost surely, 2^142741790 is an apocalyptic number.

142741790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142741790 is a deficient number, since it is larger than the sum of its proper divisors (114193450).

142741790 is a wasteful number, since it uses less digits than its factorization.

142741790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14274186.

The product of its (nonzero) digits is 14112, while the sum is 35.

The square root of 142741790 is about 11947.4595626016. The cubic root of 142741790 is about 522.6172168967.

The spelling of 142741790 in words is "one hundred forty-two million, seven hundred forty-one thousand, seven hundred ninety".