149421190 has 8 divisors (see below), whose sum is σ = 268958160. Its totient is φ = 59768472.

The previous prime is 149421163. The next prime is 149421191. The reversal of 149421190 is 91124941.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×149421190² = 44653384042032200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149421191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7471050 + ... + 7471069.

It is an arithmetic number, because the mean of its divisors is an integer number (33619770).

Almost surely, 2^149421190 is an apocalyptic number.

149421190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

149421190 is a deficient number, since it is larger than the sum of its proper divisors (119536970).

149421190 is a wasteful number, since it uses less digits than its factorization.

149421190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14942126.

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 149421190 is about 12223.7960552359. The cubic root of 149421190 is about 530.6449843172.

The spelling of 149421190 in words is "one hundred forty-nine million, four hundred twenty-one thousand, one hundred ninety".