1420520453 has 8 divisors (see below), whose sum is σ = 1549981440. Its totient is φ = 1291113280.

The previous prime is 1420520443. The next prime is 1420520461. The reversal of 1420520453 is 3540250241.

It is a happy number.

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 1420520453 - 2¹⁴ = 1420504069 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 (1420520443) 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, 58508 + ... + 79146.

It is an arithmetic number, because the mean of its divisors is an integer number (193747680).

Almost surely, 2^1420520453 is an apocalyptic number.

It is an amenable number.

1420520453 is a deficient number, since it is larger than the sum of its proper divisors (129460987).

1420520453 is a wasteful number, since it uses less digits than its factorization.

1420520453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26907.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 1420520453 is about 37689.7924244748. The cubic root of 1420520453 is about 1124.1281681267.

Adding to 1420520453 its reverse (3540250241), we get a palindrome (4960770694).

The spelling of 1420520453 in words is "one billion, four hundred twenty million, five hundred twenty thousand, four hundred fifty-three".