1148657148 has 36 divisors (see below), whose sum is σ = 2974372128. Its totient is φ = 373546560.

The previous prime is 1148657123. The next prime is 1148657149. The reversal of 1148657148 is 8417568411.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1148657149) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 387636 + ... + 390587.

It is an arithmetic number, because the mean of its divisors is an integer number (82621448).

Almost surely, 2^1148657148 is an apocalyptic number.

1148657148 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1148657148 is an abundant number, since it is smaller than the sum of its proper divisors (1825714980).

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

1148657148 is a wasteful number, since it uses less digits than its factorization.

1148657148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 778274 (or 778269 counting only the distinct ones).

The product of its digits is 215040, while the sum is 45.

The square root of 1148657148 is about 33891.8448597889. The cubic root of 1148657148 is about 1047.2815995556.

The spelling of 1148657148 in words is "one billion, one hundred forty-eight million, six hundred fifty-seven thousand, one hundred forty-eight".