21514130 has 32 divisors (see below), whose sum is σ = 42596928. Its totient is φ = 7758400.

The previous prime is 21514123. The next prime is 21514153. The reversal of 21514130 is 3141512.

It is a junction number, because it is equal to n+sod(n) for n = 21514099 and 21514108.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13664 + ... + 15156.

It is an arithmetic number, because the mean of its divisors is an integer number (1331154).

Almost surely, 2^21514130 is an apocalyptic number.

21514130 is a deficient number, since it is larger than the sum of its proper divisors (21082798).

21514130 is a wasteful number, since it uses less digits than its factorization.

21514130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1642.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 21514130 is about 4638.3326745718. The cubic root of 21514130 is about 278.1257905966.

Adding to 21514130 its reverse (3141512), we get a palindrome (24655642).

The spelling of 21514130 in words is "twenty-one million, five hundred fourteen thousand, one hundred thirty".