2154497 has 4 divisors (see below), whose sum is σ = 2228820. Its totient is φ = 2080176.

The previous prime is 2154491. The next prime is 2154499. The reversal of 2154497 is 7944512.

It is a happy number.

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 414736 + 1739761 = 644^2 + 1319^2 .

It is a cyclic number.

It is not a de Polignac number, because 2154497 - 2⁸ = 2154241 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2154491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37118 + ... + 37175.

It is an arithmetic number, because the mean of its divisors is an integer number (557205).

It is a Proth number, since it is equal to 263 ⋅ 2¹³ + 1 and 263 < 2¹³.

2^2154497 is an apocalyptic number.

It is an amenable number.

2154497 is a deficient number, since it is larger than the sum of its proper divisors (74323).

2154497 is an equidigital number, since it uses as much as digits as its factorization.

2154497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74322.

The product of its digits is 10080, while the sum is 32.

The square root of 2154497 is about 1467.8204931122. The cubic root of 2154497 is about 129.1562116176.

The spelling of 2154497 in words is "two million, one hundred fifty-four thousand, four hundred ninety-seven".