145248507961 has 2 divisors, whose sum is σ = 145248507962. Its totient is φ = 145248507960.

The previous prime is 145248507917. The next prime is 145248507979. The reversal of 145248507961 is 169705842541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85252904361 + 59995603600 = 291981^2 + 244940^2 .

It is a cyclic number.

It is not a de Polignac number, because 145248507961 - 2¹³ = 145248499769 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 145248507899 and 145248507908.

It is not a weakly prime, because it can be changed into another prime (145248507461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72624253980 + 72624253981.

It is an arithmetic number, because the mean of its divisors is an integer number (72624253981).

Almost surely, 2^145248507961 is an apocalyptic number.

It is an amenable number.

145248507961 is a deficient number, since it is larger than the sum of its proper divisors (1).

145248507961 is an equidigital number, since it uses as much as digits as its factorization.

145248507961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2419200, while the sum is 52.

The spelling of 145248507961 in words is "one hundred forty-five billion, two hundred forty-eight million, five hundred seven thousand, nine hundred sixty-one".