16356901 has 6 divisors (see below), whose sum is σ = 17979206. Its totient is φ = 14869800.

The previous prime is 16356877. The next prime is 16356947. The reversal of 16356901 is 10965361.

It can be written as a sum of positive squares in only one way, i.e., 16208676 + 148225 = 4026^2 + 385^2 .

It is a de Polignac number, because none of the positive numbers 2^k-16356901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16356971) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 67470 + ... + 67711.

Almost surely, 2^16356901 is an apocalyptic number.

16356901 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16356901 is a deficient number, since it is larger than the sum of its proper divisors (1622305).

16356901 is a wasteful number, since it uses less digits than its factorization.

16356901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135203 (or 135192 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 16356901 is about 4044.3665758682. The cubic root of 16356901 is about 253.8440618061.

The spelling of 16356901 in words is "sixteen million, three hundred fifty-six thousand, nine hundred one".