150121315 has 4 divisors (see below), whose sum is σ = 180145584.
Its totient is φ = 120097048.
The previous prime is 150121277. The next prime is 150121319. The reversal of 150121315 is 513121051.
Adding to 150121315 its reverse (513121051), we get a palindrome (663242366).
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-150121315 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 150121292 and 150121301.
It is not an unprimeable number, because it can be changed into a prime (150121319) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15012127 + ... + 15012136.
It is an arithmetic number, because the mean of its divisors is an integer number (45036396).
Almost surely, 2150121315 is an apocalyptic number.
150121315 is a deficient number, since it is larger than the sum of its proper divisors (30024269).
150121315 is an equidigital number, since it uses as much as digits as its factorization.
150121315 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 30024268.
The product of its (nonzero) digits is 150, while the sum is 19.
The square root of 150121315 is about 12252.4003770690.
The cubic root of 150121315 is about 531.4724864641.
The spelling of 150121315 in words is "one hundred fifty million, one hundred twenty-one thousand, three hundred fifteen".