12542190 has 16 divisors (see below), whose sum is σ = 30101328. Its totient is φ = 3344576.

The previous prime is 12542183. The next prime is 12542191. The reversal of 12542190 is 9124521.

12542190 = T₇₂₄ + T₇₂₅ + ... + T₇₆₈.

It is a super-2 number, since 2×12542190² = 314613059992200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12542190.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12542191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209007 + ... + 209066.

It is an arithmetic number, because the mean of its divisors is an integer number (1881333).

Almost surely, 2^12542190 is an apocalyptic number.

12542190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12542190 is an abundant number, since it is smaller than the sum of its proper divisors (17559138).

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

12542190 is a wasteful number, since it uses less digits than its factorization.

12542190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418083.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 12542190 is about 3541.4954468416. The cubic root of 12542190 is about 232.3402533137.

The spelling of 12542190 in words is "twelve million, five hundred forty-two thousand, one hundred ninety".