2141505138 has 16 divisors (see below), whose sum is σ = 4283530560. Its totient is φ = 713748336.

The previous prime is 2141505109. The next prime is 2141505139. The reversal of 2141505138 is 8315051412.

It is not an unprimeable number, because it can be changed into a prime (2141505139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50128 + ... + 82436.

It is an arithmetic number, because the mean of its divisors is an integer number (267720660).

Almost surely, 2^2141505138 is an apocalyptic number.

2141505138 is an abundant number, since it is smaller than the sum of its proper divisors (2142025422).

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

2141505138 is a wasteful number, since it uses less digits than its factorization.

2141505138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43361.

The product of its (nonzero) digits is 4800, while the sum is 30.

The square root of 2141505138 is about 46276.3993629582. The cubic root of 2141505138 is about 1288.9607915589.

The spelling of 2141505138 in words is "two billion, one hundred forty-one million, five hundred five thousand, one hundred thirty-eight".