149063261 has 4 divisors (see below), whose sum is σ = 150151452. Its totient is φ = 147975072.

The previous prime is 149063251. The next prime is 149063263. The reversal of 149063261 is 162360941.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 162360941 = 307 ⋅528863.

It can be written as a sum of positive squares in 2 ways, for example, as 121132036 + 27931225 = 11006^2 + 5285^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-149063261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149063263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 543890 + ... + 544163.

It is an arithmetic number, because the mean of its divisors is an integer number (37537863).

Almost surely, 2^149063261 is an apocalyptic number.

It is an amenable number.

149063261 is a deficient number, since it is larger than the sum of its proper divisors (1088191).

149063261 is a wasteful number, since it uses less digits than its factorization.

149063261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1088190.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 149063261 is about 12209.1466122739. The cubic root of 149063261 is about 530.2209367230.

The spelling of 149063261 in words is "one hundred forty-nine million, sixty-three thousand, two hundred sixty-one".