149880893 has 4 divisors (see below), whose sum is σ = 149963040. Its totient is φ = 149798748.

The previous prime is 149880889. The next prime is 149880901. The reversal of 149880893 is 398088941.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 398088941 = 193 ⋅2062637.

It is a cyclic number.

It is not a de Polignac number, because 149880893 - 2² = 149880889 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149880833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38273 + ... + 42006.

It is an arithmetic number, because the mean of its divisors is an integer number (37490760).

Almost surely, 2^149880893 is an apocalyptic number.

It is an amenable number.

149880893 is a deficient number, since it is larger than the sum of its proper divisors (82147).

149880893 is an equidigital number, since it uses as much as digits as its factorization.

149880893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82146.

The product of its (nonzero) digits is 497664, while the sum is 50.

The square root of 149880893 is about 12242.5852253517. The cubic root of 149880893 is about 531.1886139359.

The spelling of 149880893 in words is "one hundred forty-nine million, eight hundred eighty thousand, eight hundred ninety-three".