1423565377 has 4 divisors (see below), whose sum is σ = 1533070420. Its totient is φ = 1314060336.

The previous prime is 1423565347. The next prime is 1423565383. The reversal of 1423565377 is 7735653241.

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 495997441 + 927567936 = 22271^2 + 30456^2 .

It is a cyclic number.

It is not a de Polignac number, because 1423565377 - 2⁷ = 1423565249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1423565327) 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, 54752502 + ... + 54752527.

It is an arithmetic number, because the mean of its divisors is an integer number (383267605).

Almost surely, 2^1423565377 is an apocalyptic number.

It is an amenable number.

1423565377 is a deficient number, since it is larger than the sum of its proper divisors (109505043).

1423565377 is a wasteful number, since it uses less digits than its factorization.

1423565377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109505042.

The product of its digits is 529200, while the sum is 43.

The square root of 1423565377 is about 37730.1653455163. The cubic root of 1423565377 is about 1124.9307946235.

The spelling of 1423565377 in words is "one billion, four hundred twenty-three million, five hundred sixty-five thousand, three hundred seventy-seven".