2100147 has 16 divisors (see below), whose sum is σ = 3236352. Its totient is φ = 1186560.

The previous prime is 2100121. The next prime is 2100167. The reversal of 2100147 is 7410012.

It is not a de Polignac number, because 2100147 - 2¹² = 2096051 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2100167) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1522 + ... + 2552.

It is an arithmetic number, because the mean of its divisors is an integer number (202272).

2^2100147 is an apocalyptic number.

2100147 is a deficient number, since it is larger than the sum of its proper divisors (1136205).

2100147 is a wasteful number, since it uses less digits than its factorization.

2100147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1138.

The product of its (nonzero) digits is 56, while the sum is 15.

The square root of 2100147 is about 1449.1883935500. The cubic root of 2100147 is about 128.0609044471.

Adding to 2100147 its reverse (7410012), we get a palindrome (9510159).

The spelling of 2100147 in words is "two million, one hundred thousand, one hundred forty-seven".