149554 has 16 divisors (see below), whose sum is σ = 240768. Its totient is φ = 69552.

The previous prime is 149551. The next prime is 149561. The reversal of 149554 is 455941.

It is not an unprimeable number, because it can be changed into a prime (149551) 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, 3159 + ... + 3205.

It is an arithmetic number, because the mean of its divisors is an integer number (15048).

2¹⁴⁹⁵⁵⁴ is an apocalyptic number.

149554 is a deficient number, since it is larger than the sum of its proper divisors (91214).

149554 is a wasteful number, since it uses less digits than its factorization.

149554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129.

The product of its digits is 3600, while the sum is 28.

The square root of 149554 is about 386.7221224600. The cubic root of 149554 is about 53.0802155444.

It can be divided in two parts, 149 and 554, that added together give a triangular number (703 = T₃₇).

The spelling of 149554 in words is "one hundred forty-nine thousand, five hundred fifty-four".