123863402 has 16 divisors (see below), whose sum is σ = 201436200. Its totient is φ = 56782272.

The previous prime is 123863401. The next prime is 123863417. The reversal of 123863402 is 204368321.

It can be written as a sum of positive squares in 4 ways, for example, as 94497841 + 29365561 = 9721^2 + 5419^2 .

It is not an unprimeable number, because it can be changed into a prime (123863401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12113 + ... + 19860.

Almost surely, 2^123863402 is an apocalyptic number.

123863402 is a deficient number, since it is larger than the sum of its proper divisors (77572798).

123863402 is a wasteful number, since it uses less digits than its factorization.

123863402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32137.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 123863402 is about 11129.3936043254. The cubic root of 123863402 is about 498.4799193931.

The spelling of 123863402 in words is "one hundred twenty-three million, eight hundred sixty-three thousand, four hundred two".