149548873 has 2 divisors, whose sum is σ = 149548874. Its totient is φ = 149548872.

The previous prime is 149548843. The next prime is 149548909. The reversal of 149548873 is 378845941.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84052224 + 65496649 = 9168^2 + 8093^2 .

It is an emirp because it is prime and its reverse (378845941) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 149548873 - 2²¹ = 147451721 is a prime.

It is a super-3 number, since 3×149548873³ (a number of 26 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (149548823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74774436 + 74774437.

It is an arithmetic number, because the mean of its divisors is an integer number (74774437).

Almost surely, 2^149548873 is an apocalyptic number.

It is an amenable number.

149548873 is a deficient number, since it is larger than the sum of its proper divisors (1).

149548873 is an equidigital number, since it uses as much as digits as its factorization.

149548873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 967680, while the sum is 49.

The square root of 149548873 is about 12229.0176629196. The cubic root of 149548873 is about 530.7960897340.

The spelling of 149548873 in words is "one hundred forty-nine million, five hundred forty-eight thousand, eight hundred seventy-three".