1161650154 has 96 divisors (see below), whose sum is σ = 2905139520. Its totient is φ = 307625472.

The previous prime is 1161650143. The next prime is 1161650201. The reversal of 1161650154 is 4510561611.

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 47 ways as a sum of consecutive naturals, for example, 333132 + ... + 336600.

It is an arithmetic number, because the mean of its divisors is an integer number (30261870).

Almost surely, 2^1161650154 is an apocalyptic number.

1161650154 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1161650154, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1452569760).

1161650154 is an abundant number, since it is smaller than the sum of its proper divisors (1743489366).

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

1161650154 is a wasteful number, since it uses less digits than its factorization.

1161650154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3572 (or 3565 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 30.

The square root of 1161650154 is about 34082.9892174968. The cubic root of 1161650154 is about 1051.2155699867.

The spelling of 1161650154 in words is "one billion, one hundred sixty-one million, six hundred fifty thousand, one hundred fifty-four".