1630213051 has 2 divisors, whose sum is σ = 1630213052. Its totient is φ = 1630213050.

The previous prime is 1630212967. The next prime is 1630213069. The reversal of 1630213051 is 1503120361.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1630213051 - 2⁷ = 1630212923 is a prime.

It is not a weakly prime, because it can be changed into another prime (1633213051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 815106525 + 815106526.

It is an arithmetic number, because the mean of its divisors is an integer number (815106526).

Almost surely, 2^1630213051 is an apocalyptic number.

1630213051 is a deficient number, since it is larger than the sum of its proper divisors (1).

1630213051 is an equidigital number, since it uses as much as digits as its factorization.

1630213051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 1630213051 is about 40375.8969064465. The cubic root of 1630213051 is about 1176.9231944592.

The spelling of 1630213051 in words is "one billion, six hundred thirty million, two hundred thirteen thousand, fifty-one".