1420051541 has 4 divisors (see below), whose sum is σ = 1420314912. Its totient is φ = 1419788172.

The previous prime is 1420051537. The next prime is 1420051637. The reversal of 1420051541 is 1451500241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1420051541 - 2² = 1420051537 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420051511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123425 + ... + 134438.

It is an arithmetic number, because the mean of its divisors is an integer number (355078728).

Almost surely, 2^1420051541 is an apocalyptic number.

It is an amenable number.

1420051541 is a deficient number, since it is larger than the sum of its proper divisors (263371).

1420051541 is an equidigital number, since it uses as much as digits as its factorization.

1420051541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263370.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 1420051541 is about 37683.5712346906. The cubic root of 1420051541 is about 1124.0044634199.

Adding to 1420051541 its reverse (1451500241), we get a palindrome (2871551782).

The spelling of 1420051541 in words is "one billion, four hundred twenty million, fifty-one thousand, five hundred forty-one".