1361903454 has 48 divisors (see below), whose sum is σ = 2995911360. Its totient is φ = 447068160.

The previous prime is 1361903453. The next prime is 1361903461. The reversal of 1361903454 is 4543091631.

1361903454 is a `hidden beast` number, since 1 + 3 + 619 + 0 + 34 + 5 + 4 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1361903453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 432574 + ... + 435710.

It is an arithmetic number, because the mean of its divisors is an integer number (62414820).

Almost surely, 2^1361903454 is an apocalyptic number.

1361903454 is an abundant number, since it is smaller than the sum of its proper divisors (1634007906).

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

1361903454 is a wasteful number, since it uses less digits than its factorization.

1361903454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3505 (or 3502 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 1361903454 is about 36903.9761272414. The cubic root of 1361903454 is about 1108.4482968970.

The spelling of 1361903454 in words is "one billion, three hundred sixty-one million, nine hundred three thousand, four hundred fifty-four".