149693455 has 8 divisors (see below), whose sum is σ = 179926992. Its totient is φ = 119558208.

The previous prime is 149693441. The next prime is 149693459. The reversal of 149693455 is 554396941.

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 149693455 - 2¹¹ = 149691407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149693459) 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, 21177 + ... + 27346.

It is an arithmetic number, because the mean of its divisors is an integer number (22490874).

Almost surely, 2^149693455 is an apocalyptic number.

149693455 is a deficient number, since it is larger than the sum of its proper divisors (30233537).

149693455 is an equidigital number, since it uses as much as digits as its factorization.

149693455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49145.

The product of its digits is 583200, while the sum is 46.

The square root of 149693455 is about 12234.9276663166. The cubic root of 149693455 is about 530.9670903361.

The spelling of 149693455 in words is "one hundred forty-nine million, six hundred ninety-three thousand, four hundred fifty-five".