1420453273 has 4 divisors (see below), whose sum is σ = 1458843940. Its totient is φ = 1382062608.

The previous prime is 1420453267. The next prime is 1420453303. The reversal of 1420453273 is 3723540241.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3723540241 = 10859 ⋅342899.

It can be written as a sum of positive squares in 2 ways, for example, as 1359175689 + 61277584 = 36867^2 + 7828^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1420453273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1420453213) 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, 19195278 + ... + 19195351.

It is an arithmetic number, because the mean of its divisors is an integer number (364710985).

Almost surely, 2^1420453273 is an apocalyptic number.

It is an amenable number.

1420453273 is a deficient number, since it is larger than the sum of its proper divisors (38390667).

1420453273 is an equidigital number, since it uses as much as digits as its factorization.

1420453273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38390666.

The product of its (nonzero) digits is 20160, while the sum is 31.

The square root of 1420453273 is about 37688.9011911995. The cubic root of 1420453273 is about 1124.1104468939.

The spelling of 1420453273 in words is "one billion, four hundred twenty million, four hundred fifty-three thousand, two hundred seventy-three".