149225210 has 16 divisors (see below), whose sum is σ = 273674376. Its totient is φ = 58563648.

The previous prime is 149225191. The next prime is 149225231. The reversal of 149225210 is 12522941.

It can be written as a sum of positive squares in 4 ways, for example, as 131171209 + 18054001 = 11453^2 + 4249^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 149225210.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140249 + ... + 141308.

Almost surely, 2^149225210 is an apocalyptic number.

149225210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

149225210 is a deficient number, since it is larger than the sum of its proper divisors (124449166).

149225210 is a wasteful number, since it uses less digits than its factorization.

149225210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281617.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 149225210 is about 12215.7770935786. Note that the first 3 decimals coincide. The cubic root of 149225210 is about 530.4128858133.

The spelling of 149225210 in words is "one hundred forty-nine million, two hundred twenty-five thousand, two hundred ten".