145152461 has 2 divisors, whose sum is σ = 145152462. Its totient is φ = 145152460.

The previous prime is 145152421. The next prime is 145152463. The reversal of 145152461 is 164251541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 127554436 + 17598025 = 11294^2 + 4195^2 .

It is an emirp because it is prime and its reverse (164251541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 145152461 - 2¹⁰ = 145151437 is a prime.

Together with 145152463, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145152463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72576230 + 72576231.

It is an arithmetic number, because the mean of its divisors is an integer number (72576231).

Almost surely, 2^145152461 is an apocalyptic number.

It is an amenable number.

145152461 is a deficient number, since it is larger than the sum of its proper divisors (1).

145152461 is an equidigital number, since it uses as much as digits as its factorization.

145152461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4800, while the sum is 29.

The square root of 145152461 is about 12047.9235140334. The cubic root of 145152461 is about 525.5428531567.

The spelling of 145152461 in words is "one hundred forty-five million, one hundred fifty-two thousand, four hundred sixty-one".