145062251 has 2 divisors, whose sum is σ = 145062252. Its totient is φ = 145062250.

The previous prime is 145062233. The next prime is 145062277. The reversal of 145062251 is 152260541.

It is an a-pointer prime, because the next prime (145062277) can be obtained adding 145062251 to its sum of digits (26).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 145062251 - 2¹⁰ = 145061227 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 145062251.

It is not a weakly prime, because it can be changed into another prime (145062851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72531125 + 72531126.

It is an arithmetic number, because the mean of its divisors is an integer number (72531126).

Almost surely, 2^145062251 is an apocalyptic number.

145062251 is a deficient number, since it is larger than the sum of its proper divisors (1).

145062251 is an equidigital number, since it uses as much as digits as its factorization.

145062251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 145062251 is about 12044.1791335068. The cubic root of 145062251 is about 525.4339583547.

The spelling of 145062251 in words is "one hundred forty-five million, sixty-two thousand, two hundred fifty-one".