149887087 has 4 divisors (see below), whose sum is σ = 171299536. Its totient is φ = 128474640.

The previous prime is 149887063. The next prime is 149887091. The reversal of 149887087 is 780788941.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 780788941 = 5441 ⋅143501.

It is not a de Polignac number, because 149887087 - 2⁷ = 149886959 is a prime.

It is a super-2 number, since 2×149887087² = 44932277698691138, 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 (149887007) 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, 10706214 + ... + 10706227.

It is an arithmetic number, because the mean of its divisors is an integer number (42824884).

Almost surely, 2^149887087 is an apocalyptic number.

149887087 is a deficient number, since it is larger than the sum of its proper divisors (21412449).

149887087 is an equidigital number, since it uses as much as digits as its factorization.

149887087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21412448.

The product of its (nonzero) digits is 903168, while the sum is 52.

The square root of 149887087 is about 12242.8381921840. The cubic root of 149887087 is about 531.1959311616.

The spelling of 149887087 in words is "one hundred forty-nine million, eight hundred eighty-seven thousand, eighty-seven".