149231461 has 2 divisors, whose sum is σ = 149231462. Its totient is φ = 149231460.

The previous prime is 149231399. The next prime is 149231501. The reversal of 149231461 is 164132941.

149231461 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 148986436 + 245025 = 12206^2 + 495^2 .

It is a cyclic number.

It is not a de Polignac number, because 149231461 - 2⁷ = 149231333 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149231561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74615730 + 74615731.

It is an arithmetic number, because the mean of its divisors is an integer number (74615731).

Almost surely, 2^149231461 is an apocalyptic number.

It is an amenable number.

149231461 is a deficient number, since it is larger than the sum of its proper divisors (1).

149231461 is an equidigital number, since it uses as much as digits as its factorization.

149231461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 31.

The square root of 149231461 is about 12216.0329485476. The cubic root of 149231461 is about 530.4202919896.

It can be divided in two parts, 14923 and 1461, that added together give a 14-th power (16384 = 2¹⁴).

The spelling of 149231461 in words is "one hundred forty-nine million, two hundred thirty-one thousand, four hundred sixty-one".