1723354545 has 16 divisors (see below), whose sum is σ = 3008037312. Its totient is φ = 835565760.

The previous prime is 1723354489. The next prime is 1723354547. The reversal of 1723354545 is 5454533271.

It is not a de Polignac number, because 1723354545 - 2⁷ = 1723354417 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1723354547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5222122 + ... + 5222451.

It is an arithmetic number, because the mean of its divisors is an integer number (188002332).

Almost surely, 2^1723354545 is an apocalyptic number.

1723354545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1723354545 is a deficient number, since it is larger than the sum of its proper divisors (1284682767).

1723354545 is a wasteful number, since it uses less digits than its factorization.

1723354545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10444592.

The product of its digits is 252000, while the sum is 39.

The square root of 1723354545 is about 41513.3056380722. The cubic root of 1723354545 is about 1198.9236981283.

The spelling of 1723354545 in words is "one billion, seven hundred twenty-three million, three hundred fifty-four thousand, five hundred forty-five".