2140477 has 2 divisors, whose sum is σ = 2140478. Its totient is φ = 2140476.

The previous prime is 2140459. The next prime is 2140513. The reversal of 2140477 is 7740412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1490841 + 649636 = 1221^2 + 806^2 .

It is a cyclic number.

It is not a de Polignac number, because 2140477 - 2⁷ = 2140349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2140447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1070238 + 1070239.

It is an arithmetic number, because the mean of its divisors is an integer number (1070239).

2^2140477 is an apocalyptic number.

It is an amenable number.

2140477 is a deficient number, since it is larger than the sum of its proper divisors (1).

2140477 is an equidigital number, since it uses as much as digits as its factorization.

2140477 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1568, while the sum is 25.

The square root of 2140477 is about 1463.0369099924. The cubic root of 2140477 is about 128.8754481569.

Adding to 2140477 its reverse (7740412), we get a palindrome (9880889).

The spelling of 2140477 in words is "two million, one hundred forty thousand, four hundred seventy-seven".