122987153 has 8 divisors (see below), whose sum is σ = 123732096. Its totient is φ = 122245200.

The previous prime is 122987099. The next prime is 122987201. The reversal of 122987153 is 351789221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 122987153 - 2⁶ = 122987089 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (122987453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 227063 + ... + 227603.

It is an arithmetic number, because the mean of its divisors is an integer number (15466512).

Almost surely, 2^122987153 is an apocalyptic number.

It is an amenable number.

122987153 is a deficient number, since it is larger than the sum of its proper divisors (744943).

122987153 is an equidigital number, since it uses as much as digits as its factorization.

122987153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1495.

The product of its digits is 30240, while the sum is 38.

The square root of 122987153 is about 11089.9573037952. The cubic root of 122987153 is about 497.3016682064.

The spelling of 122987153 in words is "one hundred twenty-two million, nine hundred eighty-seven thousand, one hundred fifty-three".