122451503145 has 64 divisors (see below), whose sum is σ = 214361441280. Its totient is φ = 59472361728.

The previous prime is 122451503137. The next prime is 122451503179. The reversal of 122451503145 is 541305154221.

It is not a de Polignac number, because 122451503145 - 2³ = 122451503137 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 805282 + ... + 945188.

It is an arithmetic number, because the mean of its divisors is an integer number (3349397520).

Almost surely, 2^122451503145 is an apocalyptic number.

122451503145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

122451503145 is a deficient number, since it is larger than the sum of its proper divisors (91909938135).

122451503145 is a wasteful number, since it uses less digits than its factorization.

122451503145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140054.

The product of its (nonzero) digits is 24000, while the sum is 33.

Adding to 122451503145 its reverse (541305154221), we get a palindrome (663756657366).

The spelling of 122451503145 in words is "one hundred twenty-two billion, four hundred fifty-one million, five hundred three thousand, one hundred forty-five".