140245146 has 24 divisors (see below), whose sum is σ = 305235840. Its totient is φ = 46537416.

The previous prime is 140245123. The next prime is 140245169. The reversal of 140245146 is 641542041.

140245146 is a `hidden beast` number, since 140 + 2 + 4 + 514 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (140245123) and next prime (140245169).

It is a super-2 number, since 2×140245146² = 39337401953122632, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13456 + ... + 21483.

It is an arithmetic number, because the mean of its divisors is an integer number (12718160).

Almost surely, 2^140245146 is an apocalyptic number.

140245146 is an abundant number, since it is smaller than the sum of its proper divisors (164990694).

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

140245146 is a wasteful number, since it uses less digits than its factorization.

140245146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35170 (or 35167 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 140245146 is about 11842.5143445132. The cubic root of 140245146 is about 519.5523094476.

Adding to 140245146 its reverse (641542041), we get a palindrome (781787187).

The spelling of 140245146 in words is "one hundred forty million, two hundred forty-five thousand, one hundred forty-six".