122732378 has 4 divisors (see below), whose sum is σ = 184098570. Its totient is φ = 61366188.

The previous prime is 122732371. The next prime is 122732387. The reversal of 122732378 is 873237221.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 108722329 + 14010049 = 10427^2 + 3743^2 .

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (122732371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30683093 + ... + 30683096.

Almost surely, 2^122732378 is an apocalyptic number.

122732378 is a deficient number, since it is larger than the sum of its proper divisors (61366192).

122732378 is an equidigital number, since it uses as much as digits as its factorization.

122732378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61366191.

The product of its digits is 28224, while the sum is 35.

The square root of 122732378 is about 11078.4646048087. The cubic root of 122732378 is about 496.9580344228.

Adding to 122732378 its reverse (873237221), we get a palindrome (995969599).

The spelling of 122732378 in words is "one hundred twenty-two million, seven hundred thirty-two thousand, three hundred seventy-eight".