16131390 has 32 divisors (see below), whose sum is σ = 42235776. Its totient is φ = 3910560.

The previous prime is 16131373. The next prime is 16131397. The reversal of 16131390 is 9313161.

It is a self number, because there is not a number n which added to its sum of digits gives 16131390.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16131397) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24112 + ... + 24771.

It is an arithmetic number, because the mean of its divisors is an integer number (1319868).

Almost surely, 2^16131390 is an apocalyptic number.

16131390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16131390 is an abundant number, since it is smaller than the sum of its proper divisors (26104386).

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

16131390 is a wasteful number, since it uses less digits than its factorization.

16131390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48904.

The product of its (nonzero) digits is 486, while the sum is 24.

The square root of 16131390 is about 4016.3901702897. The cubic root of 16131390 is about 252.6720847652.

It can be divided in two parts, 1613 and 1390, that added together give a palindrome (3003).

The spelling of 16131390 in words is "sixteen million, one hundred thirty-one thousand, three hundred ninety".