123135715 has 8 divisors (see below), whose sum is σ = 147904848. Its totient is φ = 98413920.

The previous prime is 123135697. The next prime is 123135739. The reversal of 123135715 is 517531321.

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

It is not a de Polignac number, because 123135715 - 2¹³ = 123127523 is a prime.

It is a super-2 number, since 2×123135715² = 30324808617122450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5832 + ... + 16741.

It is an arithmetic number, because the mean of its divisors is an integer number (18488106).

Almost surely, 2^123135715 is an apocalyptic number.

123135715 is a deficient number, since it is larger than the sum of its proper divisors (24769133).

123135715 is a wasteful number, since it uses less digits than its factorization.

123135715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23669.

The product of its digits is 3150, while the sum is 28.

The square root of 123135715 is about 11096.6533243136. The cubic root of 123135715 is about 497.5018257048.

The spelling of 123135715 in words is "one hundred twenty-three million, one hundred thirty-five thousand, seven hundred fifteen".