1161426654 has 32 divisors (see below), whose sum is σ = 2597406240. Its totient is φ = 384673536.

The previous prime is 1161426647. The next prime is 1161426691. The reversal of 1161426654 is 4566241611.

1161426654 is a `hidden beast` number, since 11 + 614 + 26 + 6 + 5 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60019 + ... + 76974.

It is an arithmetic number, because the mean of its divisors is an integer number (81168945).

Almost surely, 2^1161426654 is an apocalyptic number.

1161426654 is an abundant number, since it is smaller than the sum of its proper divisors (1435979586).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1161426654 is a wasteful number, since it uses less digits than its factorization.

1161426654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137161 (or 137155 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 1161426654 is about 34079.7102980644. The cubic root of 1161426654 is about 1051.1481481534.

The spelling of 1161426654 in words is "one billion, one hundred sixty-one million, four hundred twenty-six thousand, six hundred fifty-four".