1361051554 has 8 divisors (see below), whose sum is σ = 2080097820. Its totient is φ = 667685616.

The previous prime is 1361051477. The next prime is 1361051561. The reversal of 1361051554 is 4551501631.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1100713329 + 260338225 = 33177^2 + 16135^2 .

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

It is a super-2 number, since 2×1361051554² = 3704922665291629832, which contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 6419949 + ... + 6420160.

Almost surely, 2^1361051554 is an apocalyptic number.

1361051554 is a deficient number, since it is larger than the sum of its proper divisors (719046266).

1361051554 is a wasteful number, since it uses less digits than its factorization.

1361051554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12840164.

The product of its (nonzero) digits is 9000, while the sum is 31.

The square root of 1361051554 is about 36892.4322049929. The cubic root of 1361051554 is about 1108.2171292469.

The spelling of 1361051554 in words is "one billion, three hundred sixty-one million, fifty-one thousand, five hundred fifty-four".