145530740623 has 2 divisors, whose sum is σ = 145530740624. Its totient is φ = 145530740622.

The previous prime is 145530740587. The next prime is 145530740627. The reversal of 145530740623 is 326047035541.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145530740623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145530740627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72765370311 + 72765370312.

It is an arithmetic number, because the mean of its divisors is an integer number (72765370312).

Almost surely, 2^145530740623 is an apocalyptic number.

145530740623 is a deficient number, since it is larger than the sum of its proper divisors (1).

145530740623 is an equidigital number, since it uses as much as digits as its factorization.

145530740623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 302400, while the sum is 40.

The spelling of 145530740623 in words is "one hundred forty-five billion, five hundred thirty million, seven hundred forty thousand, six hundred twenty-three".