1455206545 has 32 divisors (see below), whose sum is σ = 2023932960. Its totient is φ = 994775040.

The previous prime is 1455206539. The next prime is 1455206549. The reversal of 1455206545 is 5456025541.

It can be written as a sum of positive squares in 16 ways, for example, as 787139136 + 668067409 = 28056^2 + 25847^2 .

It is not a de Polignac number, because 1455206545 - 2³ = 1455206537 is a prime.

It is a super-2 number, since 2×1455206545² = 4235252177221674050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1455206549) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 56611 + ... + 78199.

It is an arithmetic number, because the mean of its divisors is an integer number (63247905).

Almost surely, 2^1455206545 is an apocalyptic number.

It is an amenable number.

1455206545 is a deficient number, since it is larger than the sum of its proper divisors (568726415).

1455206545 is a wasteful number, since it uses less digits than its factorization.

1455206545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21685.

The product of its (nonzero) digits is 120000, while the sum is 37.

The square root of 1455206545 is about 38147.1695542408. The cubic root of 1455206545 is about 1133.2042982178.

The spelling of 1455206545 in words is "one billion, four hundred fifty-five million, two hundred six thousand, five hundred forty-five".