1420612873 has 4 divisors (see below), whose sum is σ = 1422129940. Its totient is φ = 1419095808.

The previous prime is 1420612867. The next prime is 1420612889. The reversal of 1420612873 is 3782160241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3782160241 = 1229 ⋅3077429.

It can be written as a sum of positive squares in 2 ways, for example, as 83028544 + 1337584329 = 9112^2 + 36573^2 .

It is a cyclic number.

It is not a de Polignac number, because 1420612873 - 2⁵ = 1420612841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1420612073) 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, 757128 + ... + 759001.

It is an arithmetic number, because the mean of its divisors is an integer number (355532485).

Almost surely, 2^1420612873 is an apocalyptic number.

It is an amenable number.

1420612873 is a deficient number, since it is larger than the sum of its proper divisors (1517067).

1420612873 is an equidigital number, since it uses as much as digits as its factorization.

1420612873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1517066.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 1420612873 is about 37691.0184659423. The cubic root of 1420612873 is about 1124.1525464387.

The spelling of 1420612873 in words is "one billion, four hundred twenty million, six hundred twelve thousand, eight hundred seventy-three".