1356145452 has 18 divisors (see below), whose sum is σ = 3428034428. Its totient is φ = 452048472.

The previous prime is 1356145447. The next prime is 1356145489. The reversal of 1356145452 is 2545416531.

1356145452 is a `hidden beast` number, since 1 + 3 + 561 + 45 + 4 + 52 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 37670707 = 1356145452 / (1 + 3 + 5 + 6 + 1 + 4 + 5 + 4 + 5 + 2).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18835318 + ... + 18835389.

Almost surely, 2^1356145452 is an apocalyptic number.

1356145452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1356145452 is an abundant number, since it is smaller than the sum of its proper divisors (2071888976).

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

1356145452 is a wasteful number, since it uses less digits than its factorization.

1356145452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37670717 (or 37670712 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

The square root of 1356145452 is about 36825.8801931468. The cubic root of 1356145452 is about 1106.8839511821.

The spelling of 1356145452 in words is "one billion, three hundred fifty-six million, one hundred forty-five thousand, four hundred fifty-two".