142745810 has 16 divisors (see below), whose sum is σ = 262918656. Its totient is φ = 55770288.

The previous prime is 142745809. The next prime is 142745833. The reversal of 142745810 is 18547241.

It is a happy number.

It is a super-2 number, since 2×142745810² = 40752732545112200, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165554 + ... + 166413.

It is an arithmetic number, because the mean of its divisors is an integer number (16432416).

Almost surely, 2^142745810 is an apocalyptic number.

142745810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142745810 is a deficient number, since it is larger than the sum of its proper divisors (120172846).

142745810 is a wasteful number, since it uses less digits than its factorization.

142745810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332017.

The product of its (nonzero) digits is 8960, while the sum is 32.

The square root of 142745810 is about 11947.6277980192. The cubic root of 142745810 is about 522.6221229617.

The spelling of 142745810 in words is "one hundred forty-two million, seven hundred forty-five thousand, eight hundred ten".