1361653465 has 16 divisors (see below), whose sum is σ = 1685526480. Its totient is φ = 1055220480.

The previous prime is 1361653459. The next prime is 1361653481. The reversal of 1361653465 is 5643561631.

It can be written as a sum of positive squares in 8 ways, for example, as 637613001 + 724040464 = 25251^2 + 26908^2 .

It is not a de Polignac number, because 1361653465 - 2⁹ = 1361652953 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26295 + ... + 58435.

It is an arithmetic number, because the mean of its divisors is an integer number (105345405).

Almost surely, 2^1361653465 is an apocalyptic number.

It is an amenable number.

1361653465 is a deficient number, since it is larger than the sum of its proper divisors (323873015).

1361653465 is a wasteful number, since it uses less digits than its factorization.

1361653465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32412.

The product of its digits is 194400, while the sum is 40.

The square root of 1361653465 is about 36900.5889519395. The cubic root of 1361653465 is about 1108.3804710324.

It can be divided in two parts, 13616 and 53465, that added together give a square (67081 = 259²).

The spelling of 1361653465 in words is "one billion, three hundred sixty-one million, six hundred fifty-three thousand, four hundred sixty-five".