150640521 has 8 divisors (see below), whose sum is σ = 201140160. Its totient is φ = 100283952.

The previous prime is 150640489. The next prime is 150640543. The reversal of 150640521 is 125046051.

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

It is not a de Polignac number, because 150640521 - 2⁵ = 150640489 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 150640491 and 150640500.

It is not an unprimeable number, because it can be changed into a prime (150640561) 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, 33285 + ... + 37538.

It is an arithmetic number, because the mean of its divisors is an integer number (25142520).

Almost surely, 2^150640521 is an apocalyptic number.

It is an amenable number.

150640521 is a deficient number, since it is larger than the sum of its proper divisors (50499639).

150640521 is an equidigital number, since it uses as much as digits as its factorization.

150640521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71535.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 150640521 is about 12273.5700185398. The cubic root of 150640521 is about 532.0844941361.

Adding to 150640521 its reverse (125046051), we get a palindrome (275686572).

The spelling of 150640521 in words is "one hundred fifty million, six hundred forty thousand, five hundred twenty-one".