123763553 has 8 divisors (see below), whose sum is σ = 131150088. Its totient is φ = 116388864.

The previous prime is 123763547. The next prime is 123763573. The reversal of 123763553 is 355367321.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1373584 + 122389969 = 1172^2 + 11063^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123763553 - 2⁴ = 123763537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123763573) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27725 + ... + 31877.

It is an arithmetic number, because the mean of its divisors is an integer number (16393761).

Almost surely, 2^123763553 is an apocalyptic number.

It is an amenable number.

123763553 is a deficient number, since it is larger than the sum of its proper divisors (7386535).

123763553 is a wasteful number, since it uses less digits than its factorization.

123763553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5923.

The product of its digits is 56700, while the sum is 35.

The square root of 123763553 is about 11124.9068760147. The cubic root of 123763553 is about 498.3459381929.

The spelling of 123763553 in words is "one hundred twenty-three million, seven hundred sixty-three thousand, five hundred fifty-three".