1403352561 has 16 divisors (see below), whose sum is σ = 2015750016. Its totient is φ = 863310336.

The previous prime is 1403352553. The next prime is 1403352563. The reversal of 1403352561 is 1652533041.

It is not a de Polignac number, because 1403352561 - 2³ = 1403352553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1403352563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 197476 + ... + 204458.

It is an arithmetic number, because the mean of its divisors is an integer number (125984376).

Almost surely, 2^1403352561 is an apocalyptic number.

It is an amenable number.

1403352561 is a deficient number, since it is larger than the sum of its proper divisors (612397455).

1403352561 is a wasteful number, since it uses less digits than its factorization.

1403352561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12152.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 1403352561 is about 37461.3475598516. The cubic root of 1403352561 is about 1119.5811999765.

The spelling of 1403352561 in words is "one billion, four hundred three million, three hundred fifty-two thousand, five hundred sixty-one".