1154221948 has 12 divisors (see below), whose sum is σ = 2203514712. Its totient is φ = 524646320.

The previous prime is 1154221921. The next prime is 1154221961. The reversal of 1154221948 is 8491224511.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13116115 + ... + 13116202.

It is an arithmetic number, because the mean of its divisors is an integer number (183626226).

Almost surely, 2^1154221948 is an apocalyptic number.

It is an amenable number.

1154221948 is a deficient number, since it is larger than the sum of its proper divisors (1049292764).

1154221948 is a wasteful number, since it uses less digits than its factorization.

1154221948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26232332 (or 26232330 counting only the distinct ones).

The product of its digits is 23040, while the sum is 37.

The square root of 1154221948 is about 33973.8421141913. The cubic root of 1154221948 is about 1048.9701006532.

It can be divided in two parts, 115422 and 1948, that added together give a triangular number (117370 = T₄₈₄).

The spelling of 1154221948 in words is "one billion, one hundred fifty-four million, two hundred twenty-one thousand, nine hundred forty-eight".