149773455 has 40 divisors (see below), whose sum is σ = 289145472. Its totient is φ = 73732032.

The previous prime is 149773453. The next prime is 149773471. The reversal of 149773455 is 554377941.

It is not a de Polignac number, because 149773455 - 2¹ = 149773453 is a prime.

It is a super-3 number, since 3×149773455³ (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 149773455.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149773453) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 8959 + ... + 19488.

Almost surely, 2^149773455 is an apocalyptic number.

149773455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

149773455 is a deficient number, since it is larger than the sum of its proper divisors (139372017).

149773455 is a wasteful number, since it uses less digits than its factorization.

149773455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28477 (or 28468 counting only the distinct ones).

The product of its digits is 529200, while the sum is 45.

The square root of 149773455 is about 12238.1965583169. The cubic root of 149773455 is about 531.0616609425.

The spelling of 149773455 in words is "one hundred forty-nine million, seven hundred seventy-three thousand, four hundred fifty-five".