2540157 has 8 divisors (see below), whose sum is σ = 3586176. Its totient is φ = 1593792.

The previous prime is 2540141. The next prime is 2540173. The reversal of 2540157 is 7510452.

It is an interprime number because it is at equal distance from previous prime (2540141) and next prime (2540173).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2540157 - 2⁴ = 2540141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2540177) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24853 + ... + 24954.

It is an arithmetic number, because the mean of its divisors is an integer number (448272).

2^2540157 is an apocalyptic number.

It is an amenable number.

2540157 is a deficient number, since it is larger than the sum of its proper divisors (1046019).

2540157 is a wasteful number, since it uses less digits than its factorization.

2540157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49827.

The product of its (nonzero) digits is 1400, while the sum is 24.

The square root of 2540157 is about 1593.7869995705. The cubic root of 2540157 is about 136.4437101022.

The spelling of 2540157 in words is "two million, five hundred forty thousand, one hundred fifty-seven".