151025261 has 2 divisors, whose sum is σ = 151025262. Its totient is φ = 151025260.

The previous prime is 151025239. The next prime is 151025267. The reversal of 151025261 is 162520151.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 111724900 + 39300361 = 10570^2 + 6269^2 .

It is an emirp because it is prime and its reverse (162520151) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-151025261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (151025267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75512630 + 75512631.

It is an arithmetic number, because the mean of its divisors is an integer number (75512631).

Almost surely, 2^151025261 is an apocalyptic number.

It is an amenable number.

151025261 is a deficient number, since it is larger than the sum of its proper divisors (1).

151025261 is an equidigital number, since it uses as much as digits as its factorization.

151025261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 600, while the sum is 23.

The square root of 151025261 is about 12289.2335399731. The cubic root of 151025261 is about 532.5370951404.

The spelling of 151025261 in words is "one hundred fifty-one million, twenty-five thousand, two hundred sixty-one".