1630573745 has 8 divisors (see below), whose sum is σ = 1957061760. Its totient is φ = 1304210160.

The previous prime is 1630573733. The next prime is 1630573801. The reversal of 1630573745 is 5473750361.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1630573745 - 2³⁰ = 556831921 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 680 + ... + 57110.

It is an arithmetic number, because the mean of its divisors is an integer number (244632720).

Almost surely, 2^1630573745 is an apocalyptic number.

It is an amenable number.

1630573745 is a deficient number, since it is larger than the sum of its proper divisors (326488015).

1630573745 is an equidigital number, since it uses as much as digits as its factorization.

1630573745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62215.

The product of its (nonzero) digits is 264600, while the sum is 41.

The square root of 1630573745 is about 40380.3633589397. The cubic root of 1630573745 is about 1177.0099883969.

The spelling of 1630573745 in words is "one billion, six hundred thirty million, five hundred seventy-three thousand, seven hundred forty-five".