145861088761 has 2 divisors, whose sum is σ = 145861088762. Its totient is φ = 145861088760.

The previous prime is 145861088699. The next prime is 145861088767. The reversal of 145861088761 is 167880168541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 142596109161 + 3264979600 = 377619^2 + 57140^2 .

It is a cyclic number.

It is not a de Polignac number, because 145861088761 - 2⁹ = 145861088249 is a prime.

It is not a weakly prime, because it can be changed into another prime (145861088767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72930544380 + 72930544381.

It is an arithmetic number, because the mean of its divisors is an integer number (72930544381).

Almost surely, 2^145861088761 is an apocalyptic number.

It is an amenable number.

145861088761 is a deficient number, since it is larger than the sum of its proper divisors (1).

145861088761 is an equidigital number, since it uses as much as digits as its factorization.

145861088761 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2580480, while the sum is 55.

The spelling of 145861088761 in words is "one hundred forty-five billion, eight hundred sixty-one million, eighty-eight thousand, seven hundred sixty-one".