140602146 has 32 divisors (see below), whose sum is σ = 292496640. Its totient is φ = 45017856.

The previous prime is 140602139. The next prime is 140602157. The reversal of 140602146 is 641206041.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 13530 + ... + 21546.

It is an arithmetic number, because the mean of its divisors is an integer number (9140520).

Almost surely, 2^140602146 is an apocalyptic number.

140602146 is an abundant number, since it is smaller than the sum of its proper divisors (151894494).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

140602146 is a wasteful number, since it uses less digits than its factorization.

140602146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8138.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 140602146 is about 11857.5775772288. The cubic root of 140602146 is about 519.9927834304.

Adding to 140602146 its reverse (641206041), we get a palindrome (781808187).

The spelling of 140602146 in words is "one hundred forty million, six hundred two thousand, one hundred forty-six".