1148858990 has 8 divisors (see below), whose sum is σ = 2067946200. Its totient is φ = 459543592.

The previous prime is 1148858981. The next prime is 1148858999. The reversal of 1148858990 is 998588411.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1148858981) and next prime (1148858999).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1148858999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57442940 + ... + 57442959.

It is an arithmetic number, because the mean of its divisors is an integer number (258493275).

Almost surely, 2^1148858990 is an apocalyptic number.

1148858990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1148858990 is a deficient number, since it is larger than the sum of its proper divisors (919087210).

1148858990 is a wasteful number, since it uses less digits than its factorization.

1148858990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114885906.

The product of its (nonzero) digits is 829440, while the sum is 53.

The square root of 1148858990 is about 33894.8224659755. The cubic root of 1148858990 is about 1047.3429387268.

The spelling of 1148858990 in words is "one billion, one hundred forty-eight million, eight hundred fifty-eight thousand, nine hundred ninety".