122145315 has 16 divisors (see below), whose sum is σ = 197261568. Its totient is φ = 64534496.

The previous prime is 122145311. The next prime is 122145329. The reversal of 122145315 is 513541221.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 122145315 - 2² = 122145311 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122145311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36447 + ... + 39656.

It is an arithmetic number, because the mean of its divisors is an integer number (12328848).

Almost surely, 2^122145315 is an apocalyptic number.

122145315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

122145315 is a deficient number, since it is larger than the sum of its proper divisors (75116253).

122145315 is a wasteful number, since it uses less digits than its factorization.

122145315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76218.

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

The square root of 122145315 is about 11051.9371605163. The cubic root of 122145315 is about 496.1644049932.

Adding to 122145315 its reverse (513541221), we get a palindrome (635686536).

The spelling of 122145315 in words is "one hundred twenty-two million, one hundred forty-five thousand, three hundred fifteen".