1611361453 has 8 divisors (see below), whose sum is σ = 1738435608. Its totient is φ = 1484733504.

The previous prime is 1611361447. The next prime is 1611361463. The reversal of 1611361453 is 3541631161.

It can be written as a sum of positive squares in 4 ways, for example, as 17994564 + 1593366889 = 4242^2 + 39917^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1611361453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1611361463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104026 + ... + 118507.

It is an arithmetic number, because the mean of its divisors is an integer number (217304451).

Almost surely, 2^1611361453 is an apocalyptic number.

1611361453 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1611361453 is a deficient number, since it is larger than the sum of its proper divisors (127074155).

1611361453 is a wasteful number, since it uses less digits than its factorization.

1611361453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223103.

The product of its digits is 6480, while the sum is 31.

The square root of 1611361453 is about 40141.7669391869. The cubic root of 1611361453 is about 1172.3689924139.

The spelling of 1611361453 in words is "one billion, six hundred eleven million, three hundred sixty-one thousand, four hundred fifty-three".