145121533003 has 2 divisors, whose sum is σ = 145121533004. Its totient is φ = 145121533002.

The previous prime is 145121532989. The next prime is 145121533009. The reversal of 145121533003 is 300335121541.

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-145121533003 is a prime.

It is a super-2 number, since 2×145121533003² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (145121533009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72560766501 + 72560766502.

It is an arithmetic number, because the mean of its divisors is an integer number (72560766502).

Almost surely, 2^145121533003 is an apocalyptic number.

145121533003 is a deficient number, since it is larger than the sum of its proper divisors (1).

145121533003 is an equidigital number, since it uses as much as digits as its factorization.

145121533003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5400, while the sum is 28.

Adding to 145121533003 its reverse (300335121541), we get a palindrome (445456654544).

The spelling of 145121533003 in words is "one hundred forty-five billion, one hundred twenty-one million, five hundred thirty-three thousand, three".