1061505404 has 12 divisors (see below), whose sum is σ = 1867260864. Its totient is φ = 528002304.

The previous prime is 1061505397. The next prime is 1061505409. The reversal of 1061505404 is 4045051601.

It is a super-2 number, since 2×1061505404² = 2253587445442406432, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1061505409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 686732 + ... + 688275.

It is an arithmetic number, because the mean of its divisors is an integer number (155605072).

Almost surely, 2^1061505404 is an apocalyptic number.

It is an amenable number.

1061505404 is a deficient number, since it is larger than the sum of its proper divisors (805755460).

1061505404 is a wasteful number, since it uses less digits than its factorization.

1061505404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1375204 (or 1375202 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 1061505404 is about 32580.7520477966. The cubic root of 1061505404 is about 1020.0952762469.

The spelling of 1061505404 in words is "one billion, sixty-one million, five hundred five thousand, four hundred four".