2152477 has 2 divisors, whose sum is σ = 2152478. Its totient is φ = 2152476.

The previous prime is 2152457. The next prime is 2152481. The reversal of 2152477 is 7742512.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2134521 + 17956 = 1461^2 + 134^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2152477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2152427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1076238 + 1076239.

It is an arithmetic number, because the mean of its divisors is an integer number (1076239).

2^2152477 is an apocalyptic number.

It is an amenable number.

2152477 is a deficient number, since it is larger than the sum of its proper divisors (1).

2152477 is an equidigital number, since it uses as much as digits as its factorization.

2152477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3920, while the sum is 28.

The square root of 2152477 is about 1467.1322367122. The cubic root of 2152477 is about 129.1158345016.

Adding to 2152477 its reverse (7742512), we get a palindrome (9894989).

The spelling of 2152477 in words is "two million, one hundred fifty-two thousand, four hundred seventy-seven".