1121767538 has 8 divisors (see below), whose sum is σ = 1683547740. Its totient is φ = 560584960.

The previous prime is 1121767529. The next prime is 1121767547. The reversal of 1121767538 is 8357671211.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1121767529) and next prime (1121767547).

It can be written as a sum of positive squares in 2 ways, for example, as 1060348969 + 61418569 = 32563^2 + 7837^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 1121767495 and 1121767504.

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, 144683 + ... + 152238.

Almost surely, 2^1121767538 is an apocalyptic number.

1121767538 is a deficient number, since it is larger than the sum of its proper divisors (561780202).

1121767538 is a wasteful number, since it uses less digits than its factorization.

1121767538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298812.

The product of its digits is 70560, while the sum is 41.

The square root of 1121767538 is about 33492.7983005302. The cubic root of 1121767538 is about 1039.0448386316.

The spelling of 1121767538 in words is "one billion, one hundred twenty-one million, seven hundred sixty-seven thousand, five hundred thirty-eight".