123049378 has 16 divisors (see below), whose sum is σ = 192169080. Its totient is φ = 59020416.

The previous prime is 123049357. The next prime is 123049391. The reversal of 123049378 is 873940321.

It can be written as a sum of positive squares in 4 ways, for example, as 97476129 + 25573249 = 9873^2 + 5057^2 .

It is a super-2 number, since 2×123049378² = 30282298852373768, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2350 + ... + 15862.

Almost surely, 2^123049378 is an apocalyptic number.

123049378 is a deficient number, since it is larger than the sum of its proper divisors (69119702).

123049378 is a wasteful number, since it uses less digits than its factorization.

123049378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13701.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 123049378 is about 11092.7624151967. The cubic root of 123049378 is about 497.3855235204.

Adding to 123049378 its reverse (873940321), we get a palindrome (996989699).

The spelling of 123049378 in words is "one hundred twenty-three million, forty-nine thousand, three hundred seventy-eight".