1161651403 has 16 divisors (see below), whose sum is σ = 1293117696. Its totient is φ = 1034556640.

The previous prime is 1161651373. The next prime is 1161651443. The reversal of 1161651403 is 3041561611.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1161651403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1161651443) 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, 572076 + ... + 574102.

It is an arithmetic number, because the mean of its divisors is an integer number (80819856).

Almost surely, 2^1161651403 is an apocalyptic number.

1161651403 is a deficient number, since it is larger than the sum of its proper divisors (131466293).

1161651403 is a wasteful number, since it uses less digits than its factorization.

1161651403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3074.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 1161651403 is about 34083.0075404152. The cubic root of 1161651403 is about 1051.2159467404.

The spelling of 1161651403 in words is "one billion, one hundred sixty-one million, six hundred fifty-one thousand, four hundred three".