1420773573 has 4 divisors (see below), whose sum is σ = 1894364768. Its totient is φ = 947182380.

The previous prime is 1420773569. The next prime is 1420773587. The reversal of 1420773573 is 3753770241.

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 not a de Polignac number, because 1420773573 - 2² = 1420773569 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420773073) 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, 236795593 + ... + 236795598.

It is an arithmetic number, because the mean of its divisors is an integer number (473591192).

Almost surely, 2^1420773573 is an apocalyptic number.

It is an amenable number.

1420773573 is a deficient number, since it is larger than the sum of its proper divisors (473591195).

1420773573 is an equidigital number, since it uses as much as digits as its factorization.

1420773573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473591194.

The product of its (nonzero) digits is 123480, while the sum is 39.

The square root of 1420773573 is about 37693.1502132682. The cubic root of 1420773573 is about 1124.1949329575.

The spelling of 1420773573 in words is "one billion, four hundred twenty million, seven hundred seventy-three thousand, five hundred seventy-three".