2077157 has 4 divisors (see below), whose sum is σ = 2080140. Its totient is φ = 2074176.

The previous prime is 2077151. The next prime is 2077181. The reversal of 2077157 is 7517702.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 7517702 = 2 ⋅3758851.

It can be written as a sum of positive squares in 2 ways, for example, as 43681 + 2033476 = 209^2 + 1426^2 .

It is a cyclic number.

It is not a de Polignac number, because 2077157 - 2⁸ = 2076901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2077151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 173 + ... + 2045.

It is an arithmetic number, because the mean of its divisors is an integer number (520035).

2^2077157 is an apocalyptic number.

It is an amenable number.

2077157 is a deficient number, since it is larger than the sum of its proper divisors (2983).

2077157 is a wasteful number, since it uses less digits than its factorization.

2077157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2982.

The product of its (nonzero) digits is 3430, while the sum is 29.

The square root of 2077157 is about 1441.2345402467. The cubic root of 2077157 is about 127.5919009348.

It can be divided in two parts, 20 and 77157, that added together give a palindrome (77177).

The spelling of 2077157 in words is "two million, seventy-seven thousand, one hundred fifty-seven".