101402663 has 4 divisors (see below), whose sum is σ = 101638368. Its totient is φ = 101166960.

The previous prime is 101402659. The next prime is 101402669. The reversal of 101402663 is 366204101.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 101402663 - 2² = 101402659 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101402669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117206 + ... + 118067.

It is an arithmetic number, because the mean of its divisors is an integer number (25409592).

Almost surely, 2^101402663 is an apocalyptic number.

101402663 is a deficient number, since it is larger than the sum of its proper divisors (235705).

101402663 is an equidigital number, since it uses as much as digits as its factorization.

101402663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235704.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 101402663 is about 10069.8889268949. Note that the first 3 decimals coincide. The cubic root of 101402663 is about 466.3190098315.

Adding to 101402663 its reverse (366204101), we get a palindrome (467606764).

The spelling of 101402663 in words is "one hundred one million, four hundred two thousand, six hundred sixty-three".