153145331 has 4 divisors (see below), whose sum is σ = 157284432. Its totient is φ = 149006232.

The previous prime is 153145303. The next prime is 153145351. The reversal of 153145331 is 133541351.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 133541351 = 1783 ⋅74897.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-153145331 is a prime.

It is a super-2 number, since 2×153145331² = 46906984814199122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 153145331.

It is not an unprimeable number, because it can be changed into a prime (153145351) 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, 2069495 + ... + 2069568.

It is an arithmetic number, because the mean of its divisors is an integer number (39321108).

Almost surely, 2^153145331 is an apocalyptic number.

153145331 is a deficient number, since it is larger than the sum of its proper divisors (4139101).

153145331 is an equidigital number, since it uses as much as digits as its factorization.

153145331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4139100.

The product of its digits is 2700, while the sum is 26.

The square root of 153145331 is about 12375.1901399534. The cubic root of 153145331 is about 535.0174169658.

Adding to 153145331 its reverse (133541351), we get a palindrome (286686682).

The spelling of 153145331 in words is "one hundred fifty-three million, one hundred forty-five thousand, three hundred thirty-one".