1630745547 has 16 divisors (see below), whose sum is σ = 2293810560. Its totient is φ = 1027674432.

The previous prime is 1630745533. The next prime is 1630745551. The reversal of 1630745547 is 7455470361.

It is a happy number.

It is not a de Polignac number, because 1630745547 - 2⁴ = 1630745531 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1630745499 and 1630745508.

It is not an unprimeable number, because it can be changed into a prime (1630745947) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5253 + ... + 57350.

It is an arithmetic number, because the mean of its divisors is an integer number (143363160).

Almost surely, 2^1630745547 is an apocalyptic number.

1630745547 is a deficient number, since it is larger than the sum of its proper divisors (663065013).

1630745547 is a wasteful number, since it uses less digits than its factorization.

1630745547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63082.

The product of its (nonzero) digits is 352800, while the sum is 42.

The square root of 1630745547 is about 40382.4905992684. The cubic root of 1630745547 is about 1177.0513246789.

The spelling of 1630745547 in words is "one billion, six hundred thirty million, seven hundred forty-five thousand, five hundred forty-seven".