123415253 has 8 divisors (see below), whose sum is σ = 134781696. Its totient is φ = 112316400.

The previous prime is 123415249. The next prime is 123415337. The reversal of 123415253 is 352514321.

It is a happy number.

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 123415253 - 2² = 123415249 is a prime.

It is a super-3 number, since 3×123415253³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123415153) 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, 65933 + ... + 67778.

It is an arithmetic number, because the mean of its divisors is an integer number (16847712).

Almost surely, 2^123415253 is an apocalyptic number.

123415253 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

123415253 is a deficient number, since it is larger than the sum of its proper divisors (11366443).

123415253 is a wasteful number, since it uses less digits than its factorization.

123415253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133795.

The product of its digits is 3600, while the sum is 26.

The square root of 123415253 is about 11109.2417833082. The cubic root of 123415253 is about 497.8780110659.

Adding to 123415253 its reverse (352514321), we get a palindrome (475929574).

The spelling of 123415253 in words is "one hundred twenty-three million, four hundred fifteen thousand, two hundred fifty-three".