122002545 has 16 divisors (see below), whose sum is σ = 223090560. Its totient is φ = 55772544.

The previous prime is 122002537. The next prime is 122002571. The reversal of 122002545 is 545200221.

It is a happy number.

It is not a de Polignac number, because 122002545 - 2³ = 122002537 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 580860 + ... + 581069.

It is an arithmetic number, because the mean of its divisors is an integer number (13943160).

Almost surely, 2^122002545 is an apocalyptic number.

122002545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

122002545 is a deficient number, since it is larger than the sum of its proper divisors (101088015).

122002545 is a wasteful number, since it uses less digits than its factorization.

122002545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1161944.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 122002545 is about 11045.4762233233. The cubic root of 122002545 is about 495.9710150965.

Adding to 122002545 its reverse (545200221), we get a palindrome (667202766).

The spelling of 122002545 in words is "one hundred twenty-two million, two thousand, five hundred forty-five".