1148221877 has 12 divisors (see below), whose sum is σ = 1263988908. Its totient is φ = 1042272000.

The previous prime is 1148221831. The next prime is 1148221901. The reversal of 1148221877 is 7781228411.

It can be written as a sum of positive squares in 2 ways, for example, as 1068047761 + 80174116 = 32681^2 + 8954^2 .

It is not a de Polignac number, because 1148221877 - 2¹⁶ = 1148156341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1148221807) 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, 78053 + ... + 91589.

It is an arithmetic number, because the mean of its divisors is an integer number (105332409).

Almost surely, 2^1148221877 is an apocalyptic number.

It is an amenable number.

1148221877 is a deficient number, since it is larger than the sum of its proper divisors (115767031).

1148221877 is a wasteful number, since it uses less digits than its factorization.

1148221877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14260 (or 14249 counting only the distinct ones).

The product of its digits is 50176, while the sum is 41.

The square root of 1148221877 is about 33885.4227803048. The cubic root of 1148221877 is about 1047.1492975593.

The spelling of 1148221877 in words is "one billion, one hundred forty-eight million, two hundred twenty-one thousand, eight hundred seventy-seven".