150001215 has 32 divisors (see below), whose sum is σ = 295389696. Its totient is φ = 63296640.

The previous prime is 150001213. The next prime is 150001231. The reversal of 150001215 is 512100051.

150001215 = T₁₇₇₀ + T₁₇₇₁ + ... + T₁₈₆₀.

It is not a de Polignac number, because 150001215 - 2¹ = 150001213 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a junction number, because it is equal to n+sod(n) for n = 150001194 and 150001203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150001211) 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, 53581 + ... + 56310.

It is an arithmetic number, because the mean of its divisors is an integer number (9230928).

Almost surely, 2^150001215 is an apocalyptic number.

150001215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

150001215 is a deficient number, since it is larger than the sum of its proper divisors (145388481).

150001215 is a wasteful number, since it uses less digits than its factorization.

150001215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109919.

The product of its (nonzero) digits is 50, while the sum is 15.

The square root of 150001215 is about 12247.4983159827. The cubic root of 150001215 is about 531.3307191765.

Adding to 150001215 its reverse (512100051), we get a palindrome (662101266).

The spelling of 150001215 in words is "one hundred fifty million, one thousand, two hundred fifteen".