149161745 has 8 divisors (see below), whose sum is σ = 180667584. Its totient is φ = 118213744.

The previous prime is 149161741. The next prime is 149161751. The reversal of 149161745 is 547161941.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 149161745 - 2² = 149161741 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 149161699 and 149161708.

It is not an unprimeable number, because it can be changed into a prime (149161741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138869 + ... + 139938.

It is an arithmetic number, because the mean of its divisors is an integer number (22583448).

Almost surely, 2^149161745 is an apocalyptic number.

It is an amenable number.

149161745 is a deficient number, since it is larger than the sum of its proper divisors (31505839).

149161745 is a wasteful number, since it uses less digits than its factorization.

149161745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278919.

The product of its digits is 30240, while the sum is 38.

The square root of 149161745 is about 12213.1791520472. The cubic root of 149161745 is about 530.3376808549.

It can be divided in two parts, 14916 and 1745, that added together give a palindrome (16661).

The spelling of 149161745 in words is "one hundred forty-nine million, one hundred sixty-one thousand, seven hundred forty-five".