145522342501 has 2 divisors, whose sum is σ = 145522342502. Its totient is φ = 145522342500.

The previous prime is 145522342499. The next prime is 145522342513. The reversal of 145522342501 is 105243225541.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 139229728225 + 6292614276 = 373135^2 + 79326^2 .

It is a cyclic number.

It is not a de Polignac number, because 145522342501 - 2¹ = 145522342499 is a prime.

Together with 145522342499, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145522342541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72761171250 + 72761171251.

It is an arithmetic number, because the mean of its divisors is an integer number (72761171251).

Almost surely, 2^145522342501 is an apocalyptic number.

It is an amenable number.

145522342501 is a deficient number, since it is larger than the sum of its proper divisors (1).

145522342501 is an equidigital number, since it uses as much as digits as its factorization.

145522342501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48000, while the sum is 34.

The spelling of 145522342501 in words is "one hundred forty-five billion, five hundred twenty-two million, three hundred forty-two thousand, five hundred one".