1148723390 has 16 divisors (see below), whose sum is σ = 2074442832. Its totient is φ = 457991424.

The previous prime is 1148723377. The next prime is 1148723393. The reversal of 1148723390 is 933278411.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1148723393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 184019 + ... + 190158.

It is an arithmetic number, because the mean of its divisors is an integer number (129652677).

Almost surely, 2^1148723390 is an apocalyptic number.

1148723390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1148723390 is a deficient number, since it is larger than the sum of its proper divisors (925719442).

1148723390 is a wasteful number, since it uses less digits than its factorization.

1148723390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374491.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 1148723390 is about 33892.8221014421. The cubic root of 1148723390 is about 1047.3017310904.

The spelling of 1148723390 in words is "one billion, one hundred forty-eight million, seven hundred twenty-three thousand, three hundred ninety".