1453028773 has 4 divisors (see below), whose sum is σ = 1660604320. Its totient is φ = 1245453228.

The previous prime is 1453028747. The next prime is 1453028803. The reversal of 1453028773 is 3778203541.

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: 3778203541 = 7 ⋅539743363.

It is a cyclic number.

It is not a de Polignac number, because 1453028773 - 2⁹ = 1453028261 is a prime.

It is a super-2 number, since 2×1453028773² = 4222585230331771058, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1453028273) 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, 103787763 + ... + 103787776.

It is an arithmetic number, because the mean of its divisors is an integer number (415151080).

Almost surely, 2^1453028773 is an apocalyptic number.

It is an amenable number.

1453028773 is a deficient number, since it is larger than the sum of its proper divisors (207575547).

1453028773 is an equidigital number, since it uses as much as digits as its factorization.

1453028773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207575546.

The product of its (nonzero) digits is 141120, while the sum is 40.

The square root of 1453028773 is about 38118.6145209922. The cubic root of 1453028773 is about 1132.6387215290.

The spelling of 1453028773 in words is "one billion, four hundred fifty-three million, twenty-eight thousand, seven hundred seventy-three".