2145101004 has 36 divisors (see below), whose sum is σ = 5741301384. Its totient is φ = 672972672.

The previous prime is 2145100949. The next prime is 2145101069. The reversal of 2145101004 is 4001015412.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1751922 + ... + 1753145.

It is an arithmetic number, because the mean of its divisors is an integer number (159480594).

Almost surely, 2^2145101004 is an apocalyptic number.

It is an amenable number.

2145101004 is an abundant number, since it is smaller than the sum of its proper divisors (3596200380).

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

2145101004 is a wasteful number, since it uses less digits than its factorization.

2145101004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3505094 (or 3505089 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 2145101004 is about 46315.2351176155. The cubic root of 2145101004 is about 1289.6818324760.

Adding to 2145101004 its reverse (4001015412), we get a palindrome (6146116416).

The spelling of 2145101004 in words is "two billion, one hundred forty-five million, one hundred one thousand, four".