150661253 has 4 divisors (see below), whose sum is σ = 151337088. Its totient is φ = 149985420.

The previous prime is 150661249. The next prime is 150661261. The reversal of 150661253 is 352166051.

150661253 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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: 352166051 = 18229 ⋅19319.

It is a cyclic number.

It is not a de Polignac number, because 150661253 - 2² = 150661249 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150661223) 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, 337583 + ... + 338028.

It is an arithmetic number, because the mean of its divisors is an integer number (37834272).

Almost surely, 2^150661253 is an apocalyptic number.

It is an amenable number.

150661253 is a deficient number, since it is larger than the sum of its proper divisors (675835).

150661253 is an equidigital number, since it uses as much as digits as its factorization.

150661253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675834.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 150661253 is about 12274.4145685242. The cubic root of 150661253 is about 532.1089025083.

The spelling of 150661253 in words is "one hundred fifty million, six hundred sixty-one thousand, two hundred fifty-three".