149980919 has 8 divisors (see below), whose sum is σ = 173240208. Its totient is φ = 128325760.

The previous prime is 149980877. The next prime is 149980939. The reversal of 149980919 is 919089941.

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

It is a cyclic number.

It is not a de Polignac number, because 149980919 - 2²⁴ = 133203703 is a prime.

It is a super-2 number, since 2×149980919² = 44988552128169122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149980939) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 400832 + ... + 401205.

It is an arithmetic number, because the mean of its divisors is an integer number (21655026).

Almost surely, 2^149980919 is an apocalyptic number.

149980919 is a deficient number, since it is larger than the sum of its proper divisors (23259289).

149980919 is a wasteful number, since it uses less digits than its factorization.

149980919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 802065.

The product of its (nonzero) digits is 209952, while the sum is 50.

The square root of 149980919 is about 12246.6697105785. The cubic root of 149980919 is about 531.3067540935.

The spelling of 149980919 in words is "one hundred forty-nine million, nine hundred eighty thousand, nine hundred nineteen".