145552057249 has 2 divisors, whose sum is σ = 145552057250. Its totient is φ = 145552057248.

The previous prime is 145552057213. The next prime is 145552057279. The reversal of 145552057249 is 942750255541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 140625000000 + 4927057249 = 375000^2 + 70193^2 .

It is a cyclic number.

It is not a de Polignac number, because 145552057249 - 2²¹ = 145549960097 is a prime.

It is not a weakly prime, because it can be changed into another prime (145552057279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72776028624 + 72776028625.

It is an arithmetic number, because the mean of its divisors is an integer number (72776028625).

Almost surely, 2^145552057249 is an apocalyptic number.

It is an amenable number.

145552057249 is a deficient number, since it is larger than the sum of its proper divisors (1).

145552057249 is an equidigital number, since it uses as much as digits as its factorization.

145552057249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520000, while the sum is 49.

The spelling of 145552057249 in words is "one hundred forty-five billion, five hundred fifty-two million, fifty-seven thousand, two hundred forty-nine".