149303797 has 2 divisors, whose sum is σ = 149303798. Its totient is φ = 149303796.

The previous prime is 149303779. The next prime is 149303801. The reversal of 149303797 is 797303941.

Together with previous prime (149303779) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 102941316 + 46362481 = 10146^2 + 6809^2 .

It is a cyclic number.

It is not a de Polignac number, because 149303797 - 2⁷ = 149303669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149303747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74651898 + 74651899.

It is an arithmetic number, because the mean of its divisors is an integer number (74651899).

Almost surely, 2^149303797 is an apocalyptic number.

It is an amenable number.

149303797 is a deficient number, since it is larger than the sum of its proper divisors (1).

149303797 is an equidigital number, since it uses as much as digits as its factorization.

149303797 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 142884, while the sum is 43.

The square root of 149303797 is about 12218.9932891380. The cubic root of 149303797 is about 530.5059805441.

The spelling of 149303797 in words is "one hundred forty-nine million, three hundred three thousand, seven hundred ninety-seven".