1153571946 has 16 divisors (see below), whose sum is σ = 2407454784. Its totient is φ = 367805504.

The previous prime is 1153571911. The next prime is 1153571957. The reversal of 1153571946 is 6491753511.

It is a junction number, because it is equal to n+sod(n) for n = 1153571898 and 1153571907.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4179471 + ... + 4179746.

It is an arithmetic number, because the mean of its divisors is an integer number (150465924).

Almost surely, 2^1153571946 is an apocalyptic number.

1153571946 is an abundant number, since it is smaller than the sum of its proper divisors (1253882838).

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

1153571946 is a wasteful number, since it uses less digits than its factorization.

1153571946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8359245.

The product of its digits is 113400, while the sum is 42.

The square root of 1153571946 is about 33964.2745543019. The cubic root of 1153571946 is about 1048.7731539290.

The spelling of 1153571946 in words is "one billion, one hundred fifty-three million, five hundred seventy-one thousand, nine hundred forty-six".