1361489054 has 4 divisors (see below), whose sum is σ = 2042233584. Its totient is φ = 680744526.

The previous prime is 1361489039. The next prime is 1361489057. The reversal of 1361489054 is 4509841631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4509841631 = 3719 ⋅1212649.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1361489057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 340372262 + ... + 340372265.

It is an arithmetic number, because the mean of its divisors is an integer number (510558396).

Almost surely, 2^1361489054 is an apocalyptic number.

1361489054 is a deficient number, since it is larger than the sum of its proper divisors (680744530).

1361489054 is an equidigital number, since it uses as much as digits as its factorization.

1361489054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680744529.

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 1361489054 is about 36898.3611289174. The cubic root of 1361489054 is about 1108.3358592715.

The spelling of 1361489054 in words is "one billion, three hundred sixty-one million, four hundred eighty-nine thousand, fifty-four".