2153149 has 2 divisors, whose sum is σ = 2153150. Its totient is φ = 2153148.

The previous prime is 2153113. The next prime is 2153159. The reversal of 2153149 is 9413512.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1737124 + 416025 = 1318^2 + 645^2 .

It is a cyclic number.

It is not a de Polignac number, because 2153149 - 2⁹ = 2152637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2153159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1076574 + 1076575.

It is an arithmetic number, because the mean of its divisors is an integer number (1076575).

2^2153149 is an apocalyptic number.

It is an amenable number.

2153149 is a deficient number, since it is larger than the sum of its proper divisors (1).

2153149 is an equidigital number, since it uses as much as digits as its factorization.

2153149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1080, while the sum is 25.

The square root of 2153149 is about 1467.3612370511. The cubic root of 2153149 is about 129.1292696917.

It can be divided in two parts, 215 and 3149, that added together give a square (3364 = 58²).

The spelling of 2153149 in words is "two million, one hundred fifty-three thousand, one hundred forty-nine".