1453779073 has 4 divisors (see below), whose sum is σ = 1453975600. Its totient is φ = 1453582548.

The previous prime is 1453779059. The next prime is 1453779127. The reversal of 1453779073 is 3709773541.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1453779073 is a prime.

It is a super-2 number, since 2×1453779073² = 4226947186185478658, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1453779673) 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, 86715 + ... + 102112.

It is an arithmetic number, because the mean of its divisors is an integer number (363493900).

Almost surely, 2^1453779073 is an apocalyptic number.

It is an amenable number.

1453779073 is a deficient number, since it is larger than the sum of its proper divisors (196527).

1453779073 is an equidigital number, since it uses as much as digits as its factorization.

1453779073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196526.

The product of its (nonzero) digits is 555660, while the sum is 46.

The square root of 1453779073 is about 38128.4548991957. The cubic root of 1453779073 is about 1132.8336414133.

The spelling of 1453779073 in words is "one billion, four hundred fifty-three million, seven hundred seventy-nine thousand, seventy-three".