2151340102 has 4 divisors (see below), whose sum is σ = 3227010156. Its totient is φ = 1075670050.

The previous prime is 2151340073. The next prime is 2151340153. The reversal of 2151340102 is 2010431512.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2151340102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 537835024 + ... + 537835027.

It is an arithmetic number, because the mean of its divisors is an integer number (806752539).

Almost surely, 2^2151340102 is an apocalyptic number.

2151340102 is a deficient number, since it is larger than the sum of its proper divisors (1075670054).

2151340102 is a wasteful number, since it uses less digits than its factorization.

2151340102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1075670053.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 2151340102 is about 46382.5409178928. The cubic root of 2151340102 is about 1290.9309831039.

Adding to 2151340102 its reverse (2010431512), we get a palindrome (4161771614).

The spelling of 2151340102 in words is "two billion, one hundred fifty-one million, three hundred forty thousand, one hundred two".