150978317 has 4 divisors (see below), whose sum is σ = 172546656. Its totient is φ = 129409980.

The previous prime is 150978299. The next prime is 150978323. The reversal of 150978317 is 713879051.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 713879051 = 29 ⋅24616519.

It is not a de Polignac number, because 150978317 - 2⁶ = 150978253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150978517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10784159 + ... + 10784172.

It is an arithmetic number, because the mean of its divisors is an integer number (43136664).

Almost surely, 2^150978317 is an apocalyptic number.

It is an amenable number.

150978317 is a deficient number, since it is larger than the sum of its proper divisors (21568339).

150978317 is an equidigital number, since it uses as much as digits as its factorization.

150978317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21568338.

The product of its (nonzero) digits is 52920, while the sum is 41.

The square root of 150978317 is about 12287.3234270121. The cubic root of 150978317 is about 532.4819122924.

The spelling of 150978317 in words is "one hundred fifty million, nine hundred seventy-eight thousand, three hundred seventeen".