142306946690 has 16 divisors (see below), whose sum is σ = 260985571128. Its totient is φ = 55848763776.

The previous prime is 142306946657. The next prime is 142306946707. The reversal of 142306946690 is 96649603241.

It can be written as a sum of positive squares in 4 ways, for example, as 90847385281 + 51459561409 = 301409^2 + 226847^2 .

It is a super-2 number, since 2×142306946690² (a number of 23 digits) contains 22 as substring.

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, 134251307 + ... + 134252366.

Almost surely, 2^142306946690 is an apocalyptic number.

142306946690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142306946690 is a deficient number, since it is larger than the sum of its proper divisors (118678624438).

142306946690 is a wasteful number, since it uses less digits than its factorization.

142306946690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268503733.

The product of its (nonzero) digits is 1679616, while the sum is 50.

The spelling of 142306946690 in words is "one hundred forty-two billion, three hundred six million, nine hundred forty-six thousand, six hundred ninety".