1421500263 has 16 divisors (see below), whose sum is σ = 1928361696. Its totient is φ = 931184640.

The previous prime is 1421500231. The next prime is 1421500273. The reversal of 1421500263 is 3620051241.

It is not a de Polignac number, because 1421500263 - 2⁵ = 1421500231 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421500273) 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, 207631 + ... + 214367.

It is an arithmetic number, because the mean of its divisors is an integer number (120522606).

Almost surely, 2^1421500263 is an apocalyptic number.

1421500263 is a deficient number, since it is larger than the sum of its proper divisors (506861433).

1421500263 is a wasteful number, since it uses less digits than its factorization.

1421500263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7954.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 1421500263 is about 37702.7885308236. The cubic root of 1421500263 is about 1124.3865661141.

The spelling of 1421500263 in words is "one billion, four hundred twenty-one million, five hundred thousand, two hundred sixty-three".