1372736273 has 4 divisors (see below), whose sum is σ = 1377150528. Its totient is φ = 1368322020.

The previous prime is 1372736243. The next prime is 1372736329. The reversal of 1372736273 is 3726372731.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3726372731 = 83 ⋅44896057.

It is a cyclic number.

It is not a de Polignac number, because 1372736273 - 2¹² = 1372732177 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 1372736273.

It is not an unprimeable number, because it can be changed into a prime (1372736243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2206661 + ... + 2207282.

It is an arithmetic number, because the mean of its divisors is an integer number (344287632).

Almost surely, 2^1372736273 is an apocalyptic number.

It is an amenable number.

1372736273 is a deficient number, since it is larger than the sum of its proper divisors (4414255).

1372736273 is an equidigital number, since it uses as much as digits as its factorization.

1372736273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4414254.

The product of its digits is 222264, while the sum is 41.

The square root of 1372736273 is about 37050.4557731750. The cubic root of 1372736273 is about 1111.3794696309.

The spelling of 1372736273 in words is "one billion, three hundred seventy-two million, seven hundred thirty-six thousand, two hundred seventy-three".