123260137 has 40 divisors (see below), whose sum is σ = 169404480. Its totient is φ = 88411680.

The previous prime is 123260129. The next prime is 123260147. The reversal of 123260137 is 731062321.

It is not a de Polignac number, because 123260137 - 2³ = 123260129 is a prime.

It is a super-2 number, since 2×123260137² = 30386122746517538, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (123260147) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 343164 + ... + 343522.

It is an arithmetic number, because the mean of its divisors is an integer number (4235112).

Almost surely, 2^123260137 is an apocalyptic number.

It is an amenable number.

123260137 is a deficient number, since it is larger than the sum of its proper divisors (46144343).

123260137 is an equidigital number, since it uses as much as digits as its factorization.

123260137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411 (or 390 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 123260137 is about 11102.2581937190. The cubic root of 123260137 is about 497.6693355534.

The spelling of 123260137 in words is "one hundred twenty-three million, two hundred sixty thousand, one hundred thirty-seven".