2149537 has 4 divisors (see below), whose sum is σ = 2314900. Its totient is φ = 1984176.

The previous prime is 2149517. The next prime is 2149559. The reversal of 2149537 is 7359412.

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 404496 + 1745041 = 636^2 + 1321^2 .

It is a cyclic number.

It is not a de Polignac number, because 2149537 - 2⁷ = 2149409 is a prime.

It is a d-powerful number, because it can be written as 2¹⁷ + 1 + 4⁶ + 9⁵ + 5⁹ + 3⁷ + 7 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2149499 and 2149508.

It is not an unprimeable number, because it can be changed into a prime (2149517) 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, 82662 + ... + 82687.

It is an arithmetic number, because the mean of its divisors is an integer number (578725).

2^2149537 is an apocalyptic number.

It is an amenable number.

2149537 is a deficient number, since it is larger than the sum of its proper divisors (165363).

2149537 is a wasteful number, since it uses less digits than its factorization.

2149537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165362.

The product of its digits is 7560, while the sum is 31.

The square root of 2149537 is about 1466.1299396711. The cubic root of 2149537 is about 129.0570226439.

The spelling of 2149537 in words is "two million, one hundred forty-nine thousand, five hundred thirty-seven".