1405115061 has 8 divisors (see below), whose sum is σ = 2141127744. Its totient is φ = 802922880.

The previous prime is 1405115003. The next prime is 1405115123. The reversal of 1405115061 is 1605115041.

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

It is not a de Polignac number, because 1405115061 - 2⁷ = 1405114933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1405115561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33455100 + ... + 33455141.

It is an arithmetic number, because the mean of its divisors is an integer number (267640968).

Almost surely, 2^1405115061 is an apocalyptic number.

It is an amenable number.

1405115061 is a deficient number, since it is larger than the sum of its proper divisors (736012683).

1405115061 is an equidigital number, since it uses as much as digits as its factorization.

1405115061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66910251.

The product of its (nonzero) digits is 600, while the sum is 24.

The square root of 1405115061 is about 37484.8644255251. The cubic root of 1405115061 is about 1120.0497057553.

It can be divided in two parts, 140 and 5115061, that added together give a triangular number (5115201 = T₃₁₉₈).

The spelling of 1405115061 in words is "one billion, four hundred five million, one hundred fifteen thousand, sixty-one".