1161954004 has 6 divisors (see below), whose sum is σ = 2033419514. Its totient is φ = 580977000.

The previous prime is 1161953983. The next prime is 1161954037. The reversal of 1161954004 is 4004591611.

It can be written as a sum of positive squares in only one way, i.e., 803609104 + 358344900 = 28348^2 + 18930^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 145244247 + ... + 145244254.

Almost surely, 2^1161954004 is an apocalyptic number.

It is an amenable number.

1161954004 is a deficient number, since it is larger than the sum of its proper divisors (871465510).

1161954004 is a wasteful number, since it uses less digits than its factorization.

1161954004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290488505 (or 290488503 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 1161954004 is about 34087.4464282674. The cubic root of 1161954004 is about 1051.3072166283.

The spelling of 1161954004 in words is "one billion, one hundred sixty-one million, nine hundred fifty-four thousand, four".