2400157 has 2 divisors, whose sum is σ = 2400158. Its totient is φ = 2400156.

The previous prime is 2400143. The next prime is 2400161. The reversal of 2400157 is 7510042.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2149156 + 251001 = 1466^2 + 501^2 .

It is a cyclic number.

It is not a de Polignac number, because 2400157 - 2¹⁵ = 2367389 is a prime.

It is a Chen prime.

It is a plaindrome in base 14.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2400107) 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 as a sum of consecutive naturals, namely, 1200078 + 1200079.

It is an arithmetic number, because the mean of its divisors is an integer number (1200079).

2^2400157 is an apocalyptic number.

It is an amenable number.

2400157 is a deficient number, since it is larger than the sum of its proper divisors (1).

2400157 is an equidigital number, since it uses as much as digits as its factorization.

2400157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 2400157 is about 1549.2440091864. The cubic root of 2400157 is about 133.8895094243.

Adding to 2400157 its reverse (7510042), we get a palindrome (9910199).

The spelling of 2400157 in words is "two million, four hundred thousand, one hundred fifty-seven".