149620 has 12 divisors (see below), whose sum is σ = 314244. Its totient is φ = 59840.

The previous prime is 149603. The next prime is 149623. The reversal of 149620 is 26941.

It can be written as a sum of positive squares in 2 ways, for example, as 94864 + 54756 = 308^2 + 234^2 .

It is a super-2 number, since 2×149620² = 44772288800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 149591 and 149600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3721 + ... + 3760.

It is an arithmetic number, because the mean of its divisors is an integer number (26187).

2¹⁴⁹⁶²⁰ is an apocalyptic number.

149620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149620 is an abundant number, since it is smaller than the sum of its proper divisors (164624).

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

149620 is a wasteful number, since it uses less digits than its factorization.

149620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7490 (or 7488 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 149620 is about 386.8074456367. The cubic root of 149620 is about 53.0880227111.

The spelling of 149620 in words is "one hundred forty-nine thousand, six hundred twenty".