2157102 has 12 divisors (see below), whose sum is σ = 4673760. Its totient is φ = 719028.

The previous prime is 2157097. The next prime is 2157109. The reversal of 2157102 is 2017512.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 119839 = 2157102 / (2 + 1 + 5 + 7 + 1 + 0 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2157109) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 59902 + ... + 59937.

It is an arithmetic number, because the mean of its divisors is an integer number (389480).

2^2157102 is an apocalyptic number.

2157102 is an abundant number, since it is smaller than the sum of its proper divisors (2516658).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2157102 is a wasteful number, since it uses less digits than its factorization.

2157102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119847 (or 119844 counting only the distinct ones).

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

The square root of 2157102 is about 1468.7075951325. The cubic root of 2157102 is about 129.2082448642.

The spelling of 2157102 in words is "two million, one hundred fifty-seven thousand, one hundred two".