145277953 has 2 divisors, whose sum is σ = 145277954. Its totient is φ = 145277952.

The previous prime is 145277917. The next prime is 145277963. The reversal of 145277953 is 359772541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 100962304 + 44315649 = 10048^2 + 6657^2 .

It is an emirp because it is prime and its reverse (359772541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 145277953 - 2⁹ = 145277441 is a prime.

It is a super-2 number, since 2×145277953² = 42211367255740418, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (145277963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72638976 + 72638977.

It is an arithmetic number, because the mean of its divisors is an integer number (72638977).

Almost surely, 2^145277953 is an apocalyptic number.

It is an amenable number.

145277953 is a deficient number, since it is larger than the sum of its proper divisors (1).

145277953 is an equidigital number, since it uses as much as digits as its factorization.

145277953 is an evil number, because the sum of its binary digits is even.

The product of its digits is 264600, while the sum is 43.

The square root of 145277953 is about 12053.1304232552. The cubic root of 145277953 is about 525.6942627533.

The spelling of 145277953 in words is "one hundred forty-five million, two hundred seventy-seven thousand, nine hundred fifty-three".