150125531 has 4 divisors (see below), whose sum is σ = 156652752. Its totient is φ = 143598312.

The previous prime is 150125527. The next prime is 150125533. The reversal of 150125531 is 135521051.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 150125531 - 2² = 150125527 is a prime.

It is a super-2 number, since 2×150125531² = 45075350116063922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 6527197 = 150125531 / (1 + 5 + 0 + 1 + 2 + 5 + 5 + 3 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 150125497 and 150125506.

It is not an unprimeable number, because it can be changed into a prime (150125533) 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, 3263576 + ... + 3263621.

It is an arithmetic number, because the mean of its divisors is an integer number (39163188).

Almost surely, 2^150125531 is an apocalyptic number.

150125531 is a deficient number, since it is larger than the sum of its proper divisors (6527221).

150125531 is an equidigital number, since it uses as much as digits as its factorization.

150125531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6527220.

The product of its (nonzero) digits is 750, while the sum is 23.

The square root of 150125531 is about 12252.5724237811. The cubic root of 150125531 is about 531.4774617003.

Adding to 150125531 its reverse (135521051), we get a palindrome (285646582).

The spelling of 150125531 in words is "one hundred fifty million, one hundred twenty-five thousand, five hundred thirty-one".