1421112577 has 4 divisors (see below), whose sum is σ = 1421238340. Its totient is φ = 1420986816.

The previous prime is 1421112551. The next prime is 1421112599. The reversal of 1421112577 is 7752111241.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1333053121 + 88059456 = 36511^2 + 9384^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1421112577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1421112377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44052 + ... + 69157.

It is an arithmetic number, because the mean of its divisors is an integer number (355309585).

Almost surely, 2^1421112577 is an apocalyptic number.

It is an amenable number.

1421112577 is a deficient number, since it is larger than the sum of its proper divisors (125763).

1421112577 is a wasteful number, since it uses less digits than its factorization.

1421112577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125762.

The product of its digits is 3920, while the sum is 31.

The square root of 1421112577 is about 37697.6468363743. The cubic root of 1421112577 is about 1124.2843387758.

The spelling of 1421112577 in words is "one billion, four hundred twenty-one million, one hundred twelve thousand, five hundred seventy-seven".