1409156345 has 8 divisors (see below), whose sum is σ = 1708421064. Its totient is φ = 1115702784.

The previous prime is 1409156291. The next prime is 1409156377. The reversal of 1409156345 is 5436519041.

It can be written as a sum of positive squares in 4 ways, for example, as 342546064 + 1066610281 = 18508^2 + 32659^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1409156345 - 2¹⁴ = 1409139961 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1409156299 and 1409156308.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1452254 + ... + 1453223.

It is an arithmetic number, because the mean of its divisors is an integer number (213552633).

Almost surely, 2^1409156345 is an apocalyptic number.

It is an amenable number.

1409156345 is a deficient number, since it is larger than the sum of its proper divisors (299264719).

1409156345 is an equidigital number, since it uses as much as digits as its factorization.

1409156345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2905579.

The product of its (nonzero) digits is 64800, while the sum is 38.

The square root of 1409156345 is about 37538.7312651880. The cubic root of 1409156345 is about 1121.1224782443.

The spelling of 1409156345 in words is "one billion, four hundred nine million, one hundred fifty-six thousand, three hundred forty-five".