145330131 has 4 divisors (see below), whose sum is σ = 193773512. Its totient is φ = 96886752.

The previous prime is 145330099. The next prime is 145330253. The reversal of 145330131 is 131033541.

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

It is not a de Polignac number, because 145330131 - 2⁵ = 145330099 is a prime.

It is a super-2 number, since 2×145330131² = 42241693952954322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 145330098 and 145330107.

It is not an unprimeable number, because it can be changed into a prime (145330531) 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, 24221686 + ... + 24221691.

It is an arithmetic number, because the mean of its divisors is an integer number (48443378).

Almost surely, 2^145330131 is an apocalyptic number.

145330131 is a deficient number, since it is larger than the sum of its proper divisors (48443381).

145330131 is an equidigital number, since it uses as much as digits as its factorization.

145330131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48443380.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 145330131 is about 12055.2947288733. The cubic root of 145330131 is about 525.7571913016.

Adding to 145330131 its reverse (131033541), we get a palindrome (276363672).

The spelling of 145330131 in words is "one hundred forty-five million, three hundred thirty thousand, one hundred thirty-one".