145230551 has 2 divisors, whose sum is σ = 145230552. Its totient is φ = 145230550.

The previous prime is 145230539. The next prime is 145230577. The reversal of 145230551 is 155032541.

It is an a-pointer prime, because the next prime (145230577) can be obtained adding 145230551 to its sum of digits (26).

It is a weak prime.

It is an emirp because it is prime and its reverse (155032541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 145230551 - 2¹⁰ = 145229527 is a prime.

It is a zygodrome in base 6.

It is a self number, because there is not a number n which added to its sum of digits gives 145230551.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145230511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72615275 + 72615276.

It is an arithmetic number, because the mean of its divisors is an integer number (72615276).

Almost surely, 2^145230551 is an apocalyptic number.

145230551 is a deficient number, since it is larger than the sum of its proper divisors (1).

145230551 is an equidigital number, since it uses as much as digits as its factorization.

145230551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 145230551 is about 12051.1638857000. The cubic root of 145230551 is about 525.6370811699.

The spelling of 145230551 in words is "one hundred forty-five million, two hundred thirty thousand, five hundred fifty-one".