149551930 has 16 divisors (see below), whose sum is σ = 293665824. Its totient is φ = 54382480.

The previous prime is 149551921. The next prime is 149551949. The reversal of 149551930 is 39155941.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 149551930.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 679672 + ... + 679891.

It is an arithmetic number, because the mean of its divisors is an integer number (18354114).

Almost surely, 2^149551930 is an apocalyptic number.

149551930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

149551930 is a deficient number, since it is larger than the sum of its proper divisors (144113894).

149551930 is a wasteful number, since it uses less digits than its factorization.

149551930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1359581.

The product of its (nonzero) digits is 24300, while the sum is 37.

The square root of 149551930 is about 12229.1426518787. The cubic root of 149551930 is about 530.7997064616.

The spelling of 149551930 in words is "one hundred forty-nine million, five hundred fifty-one thousand, nine hundred thirty".