1122778354 has 4 divisors (see below), whose sum is σ = 1684167534. Its totient is φ = 561389176.

The previous prime is 1122778339. The next prime is 1122778369. The reversal of 1122778354 is 4538772211.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1122778339) and next prime (1122778369).

It can be written as a sum of positive squares in only one way, i.e., 852932025 + 269846329 = 29205^2 + 16427^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280694587 + ... + 280694590.

Almost surely, 2^1122778354 is an apocalyptic number.

1122778354 is a deficient number, since it is larger than the sum of its proper divisors (561389180).

1122778354 is an equidigital number, since it uses as much as digits as its factorization.

1122778354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561389179.

The product of its digits is 94080, while the sum is 40.

The square root of 1122778354 is about 33507.8849526496. The cubic root of 1122778354 is about 1039.3568366771.

The spelling of 1122778354 in words is "one billion, one hundred twenty-two million, seven hundred seventy-eight thousand, three hundred fifty-four".