1634540063 has 8 divisors (see below), whose sum is σ = 1777365408. Its totient is φ = 1494156384.

The previous prime is 1634540053. The next prime is 1634540077. The reversal of 1634540063 is 3600454361.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1634540063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1634540053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 609020 + ... + 611697.

It is an arithmetic number, because the mean of its divisors is an integer number (222170676).

Almost surely, 2^1634540063 is an apocalyptic number.

1634540063 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1634540063 is a deficient number, since it is larger than the sum of its proper divisors (142825345).

1634540063 is a wasteful number, since it uses less digits than its factorization.

1634540063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1220833.

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 1634540063 is about 40429.4454945897. The cubic root of 1634540063 is about 1177.9635619031.

The spelling of 1634540063 in words is "one billion, six hundred thirty-four million, five hundred forty thousand, sixty-three".