1630201051 has 2 divisors, whose sum is σ = 1630201052. Its totient is φ = 1630201050.

The previous prime is 1630201037. The next prime is 1630201087. The reversal of 1630201051 is 1501020361.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1630201051 is a prime.

It is not a weakly prime, because it can be changed into another prime (1630201031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 815100525 + 815100526.

It is an arithmetic number, because the mean of its divisors is an integer number (815100526).

Almost surely, 2^1630201051 is an apocalyptic number.

1630201051 is a deficient number, since it is larger than the sum of its proper divisors (1).

1630201051 is an equidigital number, since it uses as much as digits as its factorization.

1630201051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 1630201051 is about 40375.7483026631. The cubic root of 1630201051 is about 1176.9203066745.

The spelling of 1630201051 in words is "one billion, six hundred thirty million, two hundred one thousand, fifty-one".