102942146 has 8 divisors (see below), whose sum is σ = 154550604. Its totient is φ = 51425280.

The previous prime is 102942143. The next prime is 102942167. The reversal of 102942146 is 641249201.

It can be written as a sum of positive squares in 2 ways, for example, as 94848121 + 8094025 = 9739^2 + 2845^2 .

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

It is not an unprimeable number, because it can be changed into a prime (102942143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20015 + ... + 24626.

Almost surely, 2^102942146 is an apocalyptic number.

102942146 is a deficient number, since it is larger than the sum of its proper divisors (51608458).

102942146 is a wasteful number, since it uses less digits than its factorization.

102942146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45796.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 102942146 is about 10146.0409027364. The cubic root of 102942146 is about 468.6670334703.

The spelling of 102942146 in words is "one hundred two million, nine hundred forty-two thousand, one hundred forty-six".