1420040051 has 4 divisors (see below), whose sum is σ = 1420480104. Its totient is φ = 1419600000.

The previous prime is 1420040003. The next prime is 1420040081. The reversal of 1420040051 is 1500400241.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1420040051 - 2²² = 1415845747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1420040081) 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, 215150 + ... + 221651.

It is an arithmetic number, because the mean of its divisors is an integer number (355120026).

Almost surely, 2^1420040051 is an apocalyptic number.

1420040051 is a deficient number, since it is larger than the sum of its proper divisors (440053).

1420040051 is an equidigital number, since it uses as much as digits as its factorization.

1420040051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440052.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 1420040051 is about 37683.4187806786. The cubic root of 1420040051 is about 1124.0014318759.

Adding to 1420040051 its reverse (1500400241), we get a palindrome (2920440292).

The spelling of 1420040051 in words is "one billion, four hundred twenty million, forty thousand, fifty-one".