146725261 has 2 divisors, whose sum is σ = 146725262. Its totient is φ = 146725260.

The previous prime is 146725247. The next prime is 146725291. The reversal of 146725261 is 162527641.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120868036 + 25857225 = 10994^2 + 5085^2 .

It is a cyclic number.

It is not a de Polignac number, because 146725261 - 2²¹ = 144628109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (146725291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73362630 + 73362631.

It is an arithmetic number, because the mean of its divisors is an integer number (73362631).

Almost surely, 2^146725261 is an apocalyptic number.

It is an amenable number.

146725261 is a deficient number, since it is larger than the sum of its proper divisors (1).

146725261 is an equidigital number, since it uses as much as digits as its factorization.

146725261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20160, while the sum is 34.

The square root of 146725261 is about 12113.0203087422. The cubic root of 146725261 is about 527.4342120511.

The spelling of 146725261 in words is "one hundred forty-six million, seven hundred twenty-five thousand, two hundred sixty-one".