145214450231 has 2 divisors, whose sum is σ = 145214450232. Its totient is φ = 145214450230.

The previous prime is 145214450221. The next prime is 145214450291. The reversal of 145214450231 is 132054412541.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 145214450231 - 2³⁰ = 144140708407 is a prime.

It is a super-2 number, since 2×145214450231² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145214450221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72607225115 + 72607225116.

It is an arithmetic number, because the mean of its divisors is an integer number (72607225116).

Almost surely, 2^145214450231 is an apocalyptic number.

145214450231 is a deficient number, since it is larger than the sum of its proper divisors (1).

145214450231 is an equidigital number, since it uses as much as digits as its factorization.

145214450231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19200, while the sum is 32.

Adding to 145214450231 its reverse (132054412541), we get a palindrome (277268862772).

The spelling of 145214450231 in words is "one hundred forty-five billion, two hundred fourteen million, four hundred fifty thousand, two hundred thirty-one".