2151530741 has 2 divisors, whose sum is σ = 2151530742. Its totient is φ = 2151530740.

The previous prime is 2151530737. The next prime is 2151530753. The reversal of 2151530741 is 1470351512.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1234046641 + 917484100 = 35129^2 + 30290^2 .

It is a cyclic number.

It is not a de Polignac number, because 2151530741 - 2² = 2151530737 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2151532741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1075765370 + 1075765371.

It is an arithmetic number, because the mean of its divisors is an integer number (1075765371).

Almost surely, 2^2151530741 is an apocalyptic number.

It is an amenable number.

2151530741 is a deficient number, since it is larger than the sum of its proper divisors (1).

2151530741 is an equidigital number, since it uses as much as digits as its factorization.

2151530741 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 2151530741 is about 46384.5959452058. The cubic root of 2151530741 is about 1290.9691135267.

The spelling of 2151530741 in words is "two billion, one hundred fifty-one million, five hundred thirty thousand, seven hundred forty-one".