16402101 has 4 divisors (see below), whose sum is σ = 21869472. Its totient is φ = 10934732.

The previous prime is 16402079. The next prime is 16402121. The reversal of 16402101 is 10120461.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16402101 - 2⁹ = 16401589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16402121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2733681 + ... + 2733686.

It is an arithmetic number, because the mean of its divisors is an integer number (5467368).

Almost surely, 2^16402101 is an apocalyptic number.

It is an amenable number.

16402101 is a deficient number, since it is larger than the sum of its proper divisors (5467371).

16402101 is an equidigital number, since it uses as much as digits as its factorization.

16402101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5467370.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 16402101 is about 4049.9507404412. The cubic root of 16402101 is about 254.0776675706.

Adding to 16402101 its reverse (10120461), we get a palindrome (26522562).

It can be divided in two parts, 1640 and 2101, that added together give a triangular number (3741 = T₈₆).

The spelling of 16402101 in words is "sixteen million, four hundred two thousand, one hundred one".