149704452 has 18 divisors (see below), whose sum is σ = 378419678. Its totient is φ = 49901472.

The previous prime is 149704441. The next prime is 149704483. The reversal of 149704452 is 254407941.

It is a happy number.

149704452 is a `hidden beast` number, since 149 + 70 + 445 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 148206276 + 1498176 = 12174^2 + 1224^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×149704452² = 44822845897240608, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 4158457 = 149704452 / (1 + 4 + 9 + 7 + 0 + 4 + 4 + 5 + 2).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2079193 + ... + 2079264.

Almost surely, 2^149704452 is an apocalyptic number.

149704452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

149704452 is an abundant number, since it is smaller than the sum of its proper divisors (228715226).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

149704452 is a wasteful number, since it uses less digits than its factorization.

149704452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4158467 (or 4158462 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 149704452 is about 12235.3770681577. The cubic root of 149704452 is about 530.9800922452.

The spelling of 149704452 in words is "one hundred forty-nine million, seven hundred four thousand, four hundred fifty-two".