122312145 has 16 divisors (see below), whose sum is σ = 198178560. Its totient is φ = 64406784.

The previous prime is 122312131. The next prime is 122312147. The reversal of 122312145 is 541213221.

It is not a de Polignac number, because 122312145 - 2⁴ = 122312129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122312147) 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, 50424 + ... + 52793.

It is an arithmetic number, because the mean of its divisors is an integer number (12386160).

Almost surely, 2^122312145 is an apocalyptic number.

122312145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

122312145 is a deficient number, since it is larger than the sum of its proper divisors (75866415).

122312145 is a wasteful number, since it uses less digits than its factorization.

122312145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103304.

The product of its digits is 480, while the sum is 21.

The square root of 122312145 is about 11059.4821307329. The cubic root of 122312145 is about 496.3901946619.

Adding to 122312145 its reverse (541213221), we get a palindrome (663525366).

The spelling of 122312145 in words is "one hundred twenty-two million, three hundred twelve thousand, one hundred forty-five".