1055723465 has 4 divisors (see below), whose sum is σ = 1266868164. Its totient is φ = 844578768.

The previous prime is 1055723419. The next prime is 1055723491. The reversal of 1055723465 is 5643275501.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5643275501 = 13421 ⋅420481.

It can be written as a sum of positive squares in 2 ways, for example, as 240963529 + 814759936 = 15523^2 + 28544^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1055723465 is a prime.

It is a super-2 number, since 2×1055723465² = 2229104069103212450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105572342 + ... + 105572351.

It is an arithmetic number, because the mean of its divisors is an integer number (316717041).

Almost surely, 2^1055723465 is an apocalyptic number.

It is an amenable number.

1055723465 is a deficient number, since it is larger than the sum of its proper divisors (211144699).

1055723465 is an equidigital number, since it uses as much as digits as its factorization.

1055723465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211144698.

The product of its (nonzero) digits is 126000, while the sum is 38.

The square root of 1055723465 is about 32491.8984517679. The cubic root of 1055723465 is about 1018.2397761716.

Adding to 1055723465 its reverse (5643275501), we get a palindrome (6698998966).

The spelling of 1055723465 in words is "one billion, fifty-five million, seven hundred twenty-three thousand, four hundred sixty-five".