149847241 has 2 divisors, whose sum is σ = 149847242. Its totient is φ = 149847240.

The previous prime is 149847179. The next prime is 149847259. The reversal of 149847241 is 142748941.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90326016 + 59521225 = 9504^2 + 7715^2 .

It is a cyclic number.

It is not a de Polignac number, because 149847241 - 2²¹ = 147750089 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 149847194 and 149847203.

It is not a weakly prime, because it can be changed into another prime (149848241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74923620 + 74923621.

It is an arithmetic number, because the mean of its divisors is an integer number (74923621).

Almost surely, 2^149847241 is an apocalyptic number.

It is an amenable number.

149847241 is a deficient number, since it is larger than the sum of its proper divisors (1).

149847241 is an equidigital number, since it uses as much as digits as its factorization.

149847241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64512, while the sum is 40.

The square root of 149847241 is about 12241.2107652797. The cubic root of 149847241 is about 531.1488559279.

The spelling of 149847241 in words is "one hundred forty-nine million, eight hundred forty-seven thousand, two hundred forty-one".