142406761 has 8 divisors (see below), whose sum is σ = 162848000. Its totient is φ = 121989888.

The previous prime is 142406753. The next prime is 142406779. The reversal of 142406761 is 167604241.

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 142406761 - 2³ = 142406753 is a prime.

It is a super-2 number, since 2×142406761² = 40559371157022242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (142406701) 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, 8905 + ... + 19081.

It is an arithmetic number, because the mean of its divisors is an integer number (20356000).

Almost surely, 2^142406761 is an apocalyptic number.

It is an amenable number.

142406761 is a deficient number, since it is larger than the sum of its proper divisors (20441239).

142406761 is a wasteful number, since it uses less digits than its factorization.

142406761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12183.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 142406761 is about 11933.4303953222. The cubic root of 142406761 is about 522.2080186084.

The spelling of 142406761 in words is "one hundred forty-two million, four hundred six thousand, seven hundred sixty-one".