145141531 has 2 divisors, whose sum is σ = 145141532. Its totient is φ = 145141530.

The previous prime is 145141501. The next prime is 145141561. The reversal of 145141531 is 135141541.

It is a balanced prime because it is at equal distance from previous prime (145141501) and next prime (145141561).

It is an emirp because it is prime and its reverse (135141541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 145141531 - 2¹¹ = 145139483 is a prime.

It is a super-2 number, since 2×145141531² = 42132128042047922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 145141496 and 145141505.

It is not a weakly prime, because it can be changed into another prime (145141501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72570765 + 72570766.

It is an arithmetic number, because the mean of its divisors is an integer number (72570766).

Almost surely, 2^145141531 is an apocalyptic number.

145141531 is a deficient number, since it is larger than the sum of its proper divisors (1).

145141531 is an equidigital number, since it uses as much as digits as its factorization.

145141531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1200, while the sum is 25.

The square root of 145141531 is about 12047.4699003567. The cubic root of 145141531 is about 525.5296616763.

The spelling of 145141531 in words is "one hundred forty-five million, one hundred forty-one thousand, five hundred thirty-one".