142501381 has 8 divisors (see below), whose sum is σ = 155542464. Its totient is φ = 129474720.

The previous prime is 142501379. The next prime is 142501391. The reversal of 142501381 is 183105241.

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 142501381 - 2¹ = 142501379 is a prime.

It is a super-2 number, since 2×142501381² = 40613287173814322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142501301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36961 + ... + 40633.

It is an arithmetic number, because the mean of its divisors is an integer number (19442808).

Almost surely, 2^142501381 is an apocalyptic number.

142501381 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

142501381 is a deficient number, since it is larger than the sum of its proper divisors (13041083).

142501381 is a wasteful number, since it uses less digits than its factorization.

142501381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7211.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 142501381 is about 11937.3942298979. The cubic root of 142501381 is about 522.3236507195.

The spelling of 142501381 in words is "one hundred forty-two million, five hundred one thousand, three hundred eighty-one".