140290100 has 18 divisors (see below), whose sum is σ = 304429734. Its totient is φ = 56116000.

The previous prime is 140290079. The next prime is 140290109. The reversal of 140290100 is 1092041.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 3587236 + 136702864 = 1894^2 + 11692^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140290109) 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 5 ways as a sum of consecutive naturals, for example, 701351 + ... + 701550.

It is an arithmetic number, because the mean of its divisors is an integer number (16912763).

Almost surely, 2^140290100 is an apocalyptic number.

140290100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140290100 is an abundant number, since it is smaller than the sum of its proper divisors (164139634).

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

140290100 is a wasteful number, since it uses less digits than its factorization.

140290100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1402915 (or 1402908 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 140290100 is about 11844.4121846548. The cubic root of 140290100 is about 519.6078157286.

The spelling of 140290100 in words is "one hundred forty million, two hundred ninety thousand, one hundred".