123541402 has 4 divisors (see below), whose sum is σ = 185312106. Its totient is φ = 61770700.

The previous prime is 123541387. The next prime is 123541403. The reversal of 123541402 is 204145321.

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., 113230881 + 10310521 = 10641^2 + 3211^2 .

It is not an unprimeable number, because it can be changed into a prime (123541403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30885349 + ... + 30885352.

Almost surely, 2^123541402 is an apocalyptic number.

123541402 is a deficient number, since it is larger than the sum of its proper divisors (61770704).

123541402 is an equidigital number, since it uses as much as digits as its factorization.

123541402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61770703.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 123541402 is about 11114.9179933997. The cubic root of 123541402 is about 498.0475887707.

Adding to 123541402 its reverse (204145321), we get a palindrome (327686723).

The spelling of 123541402 in words is "one hundred twenty-three million, five hundred forty-one thousand, four hundred two".