149780573 has 2 divisors, whose sum is σ = 149780574. Its totient is φ = 149780572.

The previous prime is 149780509. The next prime is 149780599. The reversal of 149780573 is 375087941.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 106048804 + 43731769 = 10298^2 + 6613^2 .

It is a cyclic number.

It is not a de Polignac number, because 149780573 - 2⁶ = 149780509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149782573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74890286 + 74890287.

It is an arithmetic number, because the mean of its divisors is an integer number (74890287).

Almost surely, 2^149780573 is an apocalyptic number.

It is an amenable number.

149780573 is a deficient number, since it is larger than the sum of its proper divisors (1).

149780573 is an equidigital number, since it uses as much as digits as its factorization.

149780573 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 211680, while the sum is 44.

The square root of 149780573 is about 12238.4873656837. The cubic root of 149780573 is about 531.0700737307.

The spelling of 149780573 in words is "one hundred forty-nine million, seven hundred eighty thousand, five hundred seventy-three".