149887419 has 48 divisors (see below), whose sum is σ = 235799424. Its totient is φ = 84325120.

The previous prime is 149887417. The next prime is 149887483. The reversal of 149887419 is 914788941.

It is not a de Polignac number, because 149887419 - 2¹ = 149887417 is a prime.

It is a super-2 number, since 2×149887419² = 44932476748963122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (149887417) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 660184 + ... + 660410.

It is an arithmetic number, because the mean of its divisors is an integer number (4912488).

Almost surely, 2^149887419 is an apocalyptic number.

149887419 is a deficient number, since it is larger than the sum of its proper divisors (85912005).

149887419 is a wasteful number, since it uses less digits than its factorization.

149887419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376 (or 365 counting only the distinct ones).

The product of its digits is 580608, while the sum is 51.

The square root of 149887419 is about 12242.8517511240. The cubic root of 149887419 is about 531.1963233611.

The spelling of 149887419 in words is "one hundred forty-nine million, eight hundred eighty-seven thousand, four hundred nineteen".