16131401 has 8 divisors (see below), whose sum is σ = 18951744. Its totient is φ = 13536720.

The previous prime is 16131397. The next prime is 16131421. The reversal of 16131401 is 10413161.

16131401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16131401 - 2² = 16131397 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16131401.

It is not an unprimeable number, because it can be changed into a prime (16131421) 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, 56261 + ... + 56546.

It is an arithmetic number, because the mean of its divisors is an integer number (2368968).

Almost surely, 2^16131401 is an apocalyptic number.

16131401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16131401 is a deficient number, since it is larger than the sum of its proper divisors (2820343).

16131401 is a wasteful number, since it uses less digits than its factorization.

16131401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112831.

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

The square root of 16131401 is about 4016.3915396784. The cubic root of 16131401 is about 252.6721421976.

Adding to 16131401 its reverse (10413161), we get a palindrome (26544562).

The spelling of 16131401 in words is "sixteen million, one hundred thirty-one thousand, four hundred one".