2157453 has 24 divisors (see below), whose sum is σ = 3369600. Its totient is φ = 1325184.

The previous prime is 2157451. The next prime is 2157457. The reversal of 2157453 is 3547512.

It is a happy number.

2157453 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2157453 - 2¹ = 2157451 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2157451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8908 + ... + 9146.

It is an arithmetic number, because the mean of its divisors is an integer number (140400).

2^2157453 is an apocalyptic number.

It is an amenable number.

2157453 is a deficient number, since it is larger than the sum of its proper divisors (1212147).

2157453 is a wasteful number, since it uses less digits than its factorization.

2157453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321 (or 318 counting only the distinct ones).

The product of its digits is 4200, while the sum is 27.

The square root of 2157453 is about 1468.8270830836. The cubic root of 2157453 is about 129.2152526667.

The spelling of 2157453 in words is "two million, one hundred fifty-seven thousand, four hundred fifty-three".