1361617452 has 162 divisors, whose sum is σ = 3882746868. Its totient is φ = 417594528.

The previous prime is 1361617447. The next prime is 1361617469. The reversal of 1361617452 is 2547161631.

1361617452 is a `hidden beast` number, since 1 + 36 + 1 + 617 + 4 + 5 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (162).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 4435083 + ... + 4435389.

Almost surely, 2^1361617452 is an apocalyptic number.

1361617452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1361617452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1941373434).

1361617452 is an abundant number, since it is smaller than the sum of its proper divisors (2521129416).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1361617452 is an equidigital number, since it uses as much as digits as its factorization.

1361617452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361 (or 325 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 1361617452 is about 36900.1009754716. The cubic root of 1361617452 is about 1108.3706994670.

The spelling of 1361617452 in words is "one billion, three hundred sixty-one million, six hundred seventeen thousand, four hundred fifty-two".