2154499 has 2 divisors, whose sum is σ = 2154500. Its totient is φ = 2154498.

The previous prime is 2154491. The next prime is 2154533. The reversal of 2154499 is 9944512.

It is an a-pointer prime, because the next prime (2154533) can be obtained adding 2154499 to its sum of digits (34).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2154499 - 2³ = 2154491 is a prime.

It is not a weakly prime, because it can be changed into another prime (2154491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1077249 + 1077250.

It is an arithmetic number, because the mean of its divisors is an integer number (1077250).

2^2154499 is an apocalyptic number.

2154499 is a deficient number, since it is larger than the sum of its proper divisors (1).

2154499 is an equidigital number, since it uses as much as digits as its factorization.

2154499 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 34.

The square root of 2154499 is about 1467.8211743942. The cubic root of 2154499 is about 129.1562515825.

The spelling of 2154499 in words is "two million, one hundred fifty-four thousand, four hundred ninety-nine".