1421470577 has 4 divisors (see below), whose sum is σ = 1421811876. Its totient is φ = 1421129280.

The previous prime is 1421470571. The next prime is 1421470619. The reversal of 1421470577 is 7750741241.

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 491464561 + 930006016 = 22169^2 + 30496^2 .

It is a cyclic number.

It is not a de Polignac number, because 1421470577 - 2⁸ = 1421470321 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1421470577.

It is not an unprimeable number, because it can be changed into a prime (1421470571) 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, 164324 + ... + 172757.

It is an arithmetic number, because the mean of its divisors is an integer number (355452969).

Almost surely, 2^1421470577 is an apocalyptic number.

It is an amenable number.

1421470577 is a deficient number, since it is larger than the sum of its proper divisors (341299).

1421470577 is an equidigital number, since it uses as much as digits as its factorization.

1421470577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341298.

The product of its (nonzero) digits is 54880, while the sum is 38.

The square root of 1421470577 is about 37702.3948443597. The cubic root of 1421470577 is about 1124.3787389912.

The spelling of 1421470577 in words is "one billion, four hundred twenty-one million, four hundred seventy thousand, five hundred seventy-seven".