122135145 has 32 divisors (see below), whose sum is σ = 215602560. Its totient is φ = 58544640.

The previous prime is 122135131. The next prime is 122135147. The reversal of 122135145 is 541531221.

It is a happy number.

It is not a de Polignac number, because 122135145 - 2⁸ = 122134889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122135147) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10527 + ... + 18843.

It is an arithmetic number, because the mean of its divisors is an integer number (6737580).

Almost surely, 2^122135145 is an apocalyptic number.

122135145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

122135145 is a deficient number, since it is larger than the sum of its proper divisors (93467415).

122135145 is a wasteful number, since it uses less digits than its factorization.

122135145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8425.

The product of its digits is 1200, while the sum is 24.

The square root of 122135145 is about 11051.4770506028. The cubic root of 122135145 is about 496.1506341497.

Adding to 122135145 its reverse (541531221), we get a palindrome (663666366).

The spelling of 122135145 in words is "one hundred twenty-two million, one hundred thirty-five thousand, one hundred forty-five".