149505461 has 4 divisors (see below), whose sum is σ = 170863392. Its totient is φ = 128147532.

The previous prime is 149505443. The next prime is 149505491. The reversal of 149505461 is 164505941.

149505461 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 164505941 = 757 ⋅217313.

It is a cyclic number.

It is not a de Polignac number, because 149505461 - 2⁶ = 149505397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149505431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10678955 + ... + 10678968.

It is an arithmetic number, because the mean of its divisors is an integer number (42715848).

Almost surely, 2^149505461 is an apocalyptic number.

It is an amenable number.

149505461 is a deficient number, since it is larger than the sum of its proper divisors (21357931).

149505461 is an equidigital number, since it uses as much as digits as its factorization.

149505461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21357930.

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 149505461 is about 12227.2425754951. The cubic root of 149505461 is about 530.7447238061.

The spelling of 149505461 in words is "one hundred forty-nine million, five hundred five thousand, four hundred sixty-one".