2012157 has 36 divisors (see below), whose sum is σ = 3583840. Its totient is φ = 1062720.

The previous prime is 2012147. The next prime is 2012159. The reversal of 2012157 is 7512102.

It is not a de Polignac number, because 2012157 - 2⁶ = 2012093 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 (2012159) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 49057 + ... + 49097.

2^2012157 is an apocalyptic number.

It is an amenable number.

2012157 is a deficient number, since it is larger than the sum of its proper divisors (1571683).

2012157 is a wasteful number, since it uses less digits than its factorization.

2012157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114 (or 70 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 18.

The square root of 2012157 is about 1418.5051991445. The cubic root of 2012157 is about 126.2468704907.

Adding to 2012157 its reverse (7512102), we get a palindrome (9524259).

Subtracting 2012157 from its reverse (7512102), we obtain a palindrome (5499945).

The spelling of 2012157 in words is "two million, twelve thousand, one hundred fifty-seven".