21463035 has 16 divisors (see below), whose sum is σ = 37463040. Its totient is φ = 10406240.

The previous prime is 21463031. The next prime is 21463051. The reversal of 21463035 is 53036412.

It is a happy number.

It is not a de Polignac number, because 21463035 - 2² = 21463031 is a prime.

It is a super-2 number, since 2×21463035² = 921323742822450, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21462996 and 21463014.

It is not an unprimeable number, because it can be changed into a prime (21463031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64875 + ... + 65204.

It is an arithmetic number, because the mean of its divisors is an integer number (2341440).

Almost surely, 2^21463035 is an apocalyptic number.

21463035 is a deficient number, since it is larger than the sum of its proper divisors (16000005).

21463035 is a wasteful number, since it uses less digits than its factorization.

21463035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130098.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 21463035 is about 4632.8214945107. The cubic root of 21463035 is about 277.9054377068.

Adding to 21463035 its reverse (53036412), we get a palindrome (74499447).

The spelling of 21463035 in words is "twenty-one million, four hundred sixty-three thousand, thirty-five".