145310131 has 4 divisors (see below), whose sum is σ = 145533312. Its totient is φ = 145086952.

The previous prime is 145310117. The next prime is 145310147. The reversal of 145310131 is 131013541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131013541 = 1823 ⋅71867.

It is a cyclic number.

It is not a de Polignac number, because 145310131 - 2¹⁹ = 144785843 is a prime.

It is a super-2 number, since 2×145310131² = 42230068342474322, 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 = 145310099 and 145310108.

It is not an unprimeable number, because it can be changed into a prime (145310111) 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, 110611 + ... + 111916.

It is an arithmetic number, because the mean of its divisors is an integer number (36383328).

Almost surely, 2^145310131 is an apocalyptic number.

145310131 is a deficient number, since it is larger than the sum of its proper divisors (223181).

145310131 is an equidigital number, since it uses as much as digits as its factorization.

145310131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223180.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 145310131 is about 12054.4651892981. The cubic root of 145310131 is about 525.7330723613.

Adding to 145310131 its reverse (131013541), we get a palindrome (276323672).

The spelling of 145310131 in words is "one hundred forty-five million, three hundred ten thousand, one hundred thirty-one".