12140990 has 16 divisors (see below), whose sum is σ = 21967200. Its totient is φ = 4831200.

The previous prime is 12140977. The next prime is 12141001. The reversal of 12140990 is 9904121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1061 + ... + 5040.

It is an arithmetic number, because the mean of its divisors is an integer number (1372950).

Almost surely, 2^12140990 is an apocalyptic number.

12140990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12140990 is a deficient number, since it is larger than the sum of its proper divisors (9826210).

12140990 is a wasteful number, since it uses less digits than its factorization.

12140990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6307.

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 12140990 is about 3484.3923430062. The cubic root of 12140990 is about 229.8359889330.

It can be divided in two parts, 12 and 140990, that multiplied together give a triangular number (1691880 = T₁₈₃₉).

The spelling of 12140990 in words is "twelve million, one hundred forty thousand, nine hundred ninety".