2452157 has 4 divisors (see below), whose sum is σ = 2455296. Its totient is φ = 2449020.

The previous prime is 2452147. The next prime is 2452181. The reversal of 2452157 is 7512542.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 7512542 = 2 ⋅3756271.

It is a cyclic number.

It is not a de Polignac number, because 2452157 - 2⁴ = 2452141 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2452147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 638 + ... + 2304.

It is an arithmetic number, because the mean of its divisors is an integer number (613824).

2^2452157 is an apocalyptic number.

It is an amenable number.

2452157 is a deficient number, since it is larger than the sum of its proper divisors (3139).

2452157 is a wasteful number, since it uses less digits than its factorization.

2452157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3138.

The product of its digits is 2800, while the sum is 26.

The square root of 2452157 is about 1565.9364610354. The cubic root of 2452157 is about 134.8495259849.

Adding to 2452157 its reverse (7512542), we get a palindrome (9964699).

The spelling of 2452157 in words is "two million, four hundred fifty-two thousand, one hundred fifty-seven".