1148113590 has 64 divisors (see below), whose sum is σ = 2988921600. Its totient is φ = 280566144.

The previous prime is 1148113579. The next prime is 1148113597. The reversal of 1148113590 is 953118411.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1148113597) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43621 + ... + 64799.

It is an arithmetic number, because the mean of its divisors is an integer number (46701900).

Almost surely, 2^1148113590 is an apocalyptic number.

1148113590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1148113590, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1494460800).

1148113590 is an abundant number, since it is smaller than the sum of its proper divisors (1840808010).

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

1148113590 is a wasteful number, since it uses less digits than its factorization.

1148113590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21341.

The product of its (nonzero) digits is 4320, while the sum is 33.

The square root of 1148113590 is about 33883.8249021565. The cubic root of 1148113590 is about 1047.1163781898.

The spelling of 1148113590 in words is "one billion, one hundred forty-eight million, one hundred thirteen thousand, five hundred ninety".