150631601 has 4 divisors (see below), whose sum is σ = 158559600. Its totient is φ = 142703604.

The previous prime is 150631589. The next prime is 150631627. The reversal of 150631601 is 106136051.

It is a happy number.

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.

It is not a de Polignac number, because 150631601 - 2¹⁰ = 150630577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (150631651) 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, 3963971 + ... + 3964008.

It is an arithmetic number, because the mean of its divisors is an integer number (39639900).

Almost surely, 2^150631601 is an apocalyptic number.

It is an amenable number.

150631601 is a deficient number, since it is larger than the sum of its proper divisors (7927999).

150631601 is an equidigital number, since it uses as much as digits as its factorization.

150631601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7927998.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 150631601 is about 12273.2066307058. The cubic root of 150631601 is about 532.0739916778.

Adding to 150631601 its reverse (106136051), we get a palindrome (256767652).

The spelling of 150631601 in words is "one hundred fifty million, six hundred thirty-one thousand, six hundred one".