214651601 has 4 divisors (see below), whose sum is σ = 214688100. Its totient is φ = 214615104.

The previous prime is 214651597. The next prime is 214651621. The reversal of 214651601 is 106156412.

214651601 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 133633600 + 81018001 = 11560^2 + 9001^2 .

It is a cyclic number.

It is not a de Polignac number, because 214651601 - 2² = 214651597 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (214651621) 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, 7196 + ... + 21933.

It is an arithmetic number, because the mean of its divisors is an integer number (53672025).

Almost surely, 2^214651601 is an apocalyptic number.

It is an amenable number.

214651601 is a deficient number, since it is larger than the sum of its proper divisors (36499).

214651601 is an equidigital number, since it uses as much as digits as its factorization.

214651601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36498.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 214651601 is about 14650.9931745257. The cubic root of 214651601 is about 598.7488753660.

The spelling of 214651601 in words is "two hundred fourteen million, six hundred fifty-one thousand, six hundred one".