561147403 has 6 divisors (see below), whose sum is σ = 567531284. Its totient is φ = 554834544.

The previous prime is 561147371. The next prime is 561147409. The reversal of 561147403 is 304741165.

It is not a de Polignac number, because 561147403 - 2⁵ = 561147371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (561147409) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27501 + ... + 43342.

Almost surely, 2^561147403 is an apocalyptic number.

561147403 is a deficient number, since it is larger than the sum of its proper divisors (6383881).

561147403 is an frugal number, since it uses more digits than its factorization.

561147403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71021 (or 70932 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 561147403 is about 23688.5500400510. The cubic root of 561147403 is about 824.8196253354.

Adding to 561147403 its reverse (304741165), we get a palindrome (865888568).

The spelling of 561147403 in words is "five hundred sixty-one million, one hundred forty-seven thousand, four hundred three".