1538214663 has 8 divisors (see below), whose sum is σ = 2051425008. Its totient is φ = 1025240384.

The previous prime is 1538214661. The next prime is 1538214683. The reversal of 1538214663 is 3664128351.

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

It is a cyclic number.

It is not a de Polignac number, because 1538214663 - 2¹ = 1538214661 is a prime.

It is a super-2 number, since 2×1538214663² = 4732208698936407138, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1538214661) 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, 43206 + ... + 70307.

It is an arithmetic number, because the mean of its divisors is an integer number (256428126).

Almost surely, 2^1538214663 is an apocalyptic number.

1538214663 is a deficient number, since it is larger than the sum of its proper divisors (513210345).

1538214663 is a wasteful number, since it uses less digits than its factorization.

1538214663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118033.

The product of its digits is 103680, while the sum is 39.

The square root of 1538214663 is about 39220.0798443858. The cubic root of 1538214663 is about 1154.3539206323.

The spelling of 1538214663 in words is "one billion, five hundred thirty-eight million, two hundred fourteen thousand, six hundred sixty-three".