145252741 has 2 divisors, whose sum is σ = 145252742. Its totient is φ = 145252740.

The previous prime is 145252733. The next prime is 145252781. The reversal of 145252741 is 147252541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 119028100 + 26224641 = 10910^2 + 5121^2 .

It is a cyclic number.

It is not a de Polignac number, because 145252741 - 2³ = 145252733 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145252711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72626370 + 72626371.

It is an arithmetic number, because the mean of its divisors is an integer number (72626371).

Almost surely, 2^145252741 is an apocalyptic number.

It is an amenable number.

145252741 is a deficient number, since it is larger than the sum of its proper divisors (1).

145252741 is an equidigital number, since it uses as much as digits as its factorization.

145252741 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11200, while the sum is 31.

The square root of 145252741 is about 12052.0845084989. The cubic root of 145252741 is about 525.6638507735.

The spelling of 145252741 in words is "one hundred forty-five million, two hundred fifty-two thousand, seven hundred forty-one".