149471028 has 48 divisors (see below), whose sum is σ = 442879360. Its totient is φ = 42705792.

The previous prime is 149471027. The next prime is 149471033. The reversal of 149471028 is 820174941.

It is a super-2 number, since 2×149471028² = 44683176422753568, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 149470983 and 149471001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149471027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98101 + ... + 99612.

Almost surely, 2^149471028 is an apocalyptic number.

149471028 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

149471028 is an abundant number, since it is smaller than the sum of its proper divisors (293408332).

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

149471028 is a wasteful number, since it uses less digits than its factorization.

149471028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197733 (or 197725 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 149471028 is about 12225.8344500488. The cubic root of 149471028 is about 530.7039749351.

The spelling of 149471028 in words is "one hundred forty-nine million, four hundred seventy-one thousand, twenty-eight".