151422493 has 2 divisors, whose sum is σ = 151422494. Its totient is φ = 151422492.

The previous prime is 151422449. The next prime is 151422499. The reversal of 151422493 is 394224151.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 128640964 + 22781529 = 11342^2 + 4773^2 .

It is a cyclic number.

It is not a de Polignac number, because 151422493 - 2⁹ = 151421981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (151422499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75711246 + 75711247.

It is an arithmetic number, because the mean of its divisors is an integer number (75711247).

Almost surely, 2^151422493 is an apocalyptic number.

It is an amenable number.

151422493 is a deficient number, since it is larger than the sum of its proper divisors (1).

151422493 is an equidigital number, since it uses as much as digits as its factorization.

151422493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 31.

The square root of 151422493 is about 12305.3847156438. The cubic root of 151422493 is about 533.0035857066.

The spelling of 151422493 in words is "one hundred fifty-one million, four hundred twenty-two thousand, four hundred ninety-three".