122402145 has 32 divisors (see below), whose sum is σ = 199359360. Its totient is φ = 64120320.

The previous prime is 122402143. The next prime is 122402183. The reversal of 122402145 is 541204221.

It is not a de Polignac number, because 122402145 - 2¹ = 122402143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122402141) 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, 369630 + ... + 369960.

It is an arithmetic number, because the mean of its divisors is an integer number (6229980).

Almost surely, 2^122402145 is an apocalyptic number.

122402145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

122402145 is a deficient number, since it is larger than the sum of its proper divisors (76957215).

122402145 is a wasteful number, since it uses less digits than its factorization.

122402145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 705.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 122402145 is about 11063.5502891251. The cubic root of 122402145 is about 496.5119164646.

Adding to 122402145 its reverse (541204221), we get a palindrome (663606366).

The spelling of 122402145 in words is "one hundred twenty-two million, four hundred two thousand, one hundred forty-five".