2150397 has 12 divisors (see below), whose sum is σ = 3119740. Its totient is φ = 1427328.

The previous prime is 2150383. The next prime is 2150399. The reversal of 2150397 is 7930512.

It can be written as a sum of positive squares in 2 ways, for example, as 423801 + 1726596 = 651^2 + 1314^2 .

It is not a de Polignac number, because 2150397 - 2⁶ = 2150333 is a prime.

It is an Ulam number.

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 2150397.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2150399) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2679 + ... + 3387.

2^2150397 is an apocalyptic number.

It is an amenable number.

2150397 is a deficient number, since it is larger than the sum of its proper divisors (969343).

2150397 is a wasteful number, since it uses less digits than its factorization.

2150397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1052 (or 1049 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The square root of 2150397 is about 1466.4231994892. The cubic root of 2150397 is about 129.0742316585.

The spelling of 2150397 in words is "two million, one hundred fifty thousand, three hundred ninety-seven".