1421500501 has 8 divisors (see below), whose sum is σ = 1442073600. Its totient is φ = 1401064560.

The previous prime is 1421500481. The next prime is 1421500513. The reversal of 1421500501 is 1050051241.

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 1421500501 - 2⁵ = 1421500469 is a prime.

It is a super-5 number, since 5×1421500501⁵ (a number of 47 digits) contains 55555 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421500541) 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, 13321 + ... + 54958.

It is an arithmetic number, because the mean of its divisors is an integer number (180259200).

Almost surely, 2^1421500501 is an apocalyptic number.

It is an amenable number.

1421500501 is a deficient number, since it is larger than the sum of its proper divisors (20573099).

1421500501 is a wasteful number, since it uses less digits than its factorization.

1421500501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68579.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 1421500501 is about 37702.7916870886. The cubic root of 1421500501 is about 1124.3866288656.

Adding to 1421500501 its reverse (1050051241), we get a palindrome (2471551742).

The spelling of 1421500501 in words is "one billion, four hundred twenty-one million, five hundred thousand, five hundred one".