2151087730 has 16 divisors (see below), whose sum is σ = 4223954304. Its totient is φ = 782213680.

The previous prime is 2151087721. The next prime is 2151087739. The reversal of 2151087730 is 377801512.

2151087730 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2151087721) and next prime (2151087739).

It is not an unprimeable number, because it can be changed into a prime (2151087739) 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, 9777562 + ... + 9777781.

It is an arithmetic number, because the mean of its divisors is an integer number (263997144).

Almost surely, 2^2151087730 is an apocalyptic number.

2151087730 is a deficient number, since it is larger than the sum of its proper divisors (2072866574).

2151087730 is a wasteful number, since it uses less digits than its factorization.

2151087730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19555361.

The product of its (nonzero) digits is 11760, while the sum is 34.

The square root of 2151087730 is about 46379.8202885695. The cubic root of 2151087730 is about 1290.8805017669.

The spelling of 2151087730 in words is "two billion, one hundred fifty-one million, eighty-seven thousand, seven hundred thirty".