149454 has 36 divisors (see below), whose sum is σ = 356616. Its totient is φ = 45144.

The previous prime is 149441. The next prime is 149459. The reversal of 149454 is 454941.

It is an Ulam number.

It is an alternating number because its digits alternate between odd and even.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149459) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 6487 + ... + 6509.

It is an arithmetic number, because the mean of its divisors is an integer number (9906).

2¹⁴⁹⁴⁵⁴ is an apocalyptic number.

149454 is the 207-th nonagonal number.

It is a practical number, because each smaller number is the sum of distinct divisors of 149454, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178308).

149454 is an abundant number, since it is smaller than the sum of its proper divisors (207162).

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

149454 is a wasteful number, since it uses less digits than its factorization.

149454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69 (or 47 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 149454 is about 386.5928090381. The cubic root of 149454 is about 53.0683821263.

It can be divided in two parts, 1 and 49454, that added together give a triangular number (49455 = T₃₁₄).

The spelling of 149454 in words is "one hundred forty-nine thousand, four hundred fifty-four".