87495149 has 4 divisors (see below), whose sum is σ = 99994464. Its totient is φ = 74995836.

The previous prime is 87495143. The next prime is 87495157. The reversal of 87495149 is 94159478.

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.

It is a cyclic number.

It is not a de Polignac number, because 87495149 - 2⁸ = 87494893 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 (87495143) 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, 6249647 + ... + 6249660.

It is an arithmetic number, because the mean of its divisors is an integer number (24998616).

Almost surely, 2^87495149 is an apocalyptic number.

It is an amenable number.

87495149 is a deficient number, since it is larger than the sum of its proper divisors (12499315).

87495149 is a wasteful number, since it uses less digits than its factorization.

87495149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12499314.

The product of its digits is 362880, while the sum is 47.

The square root of 87495149 is about 9353.8841664840. The cubic root of 87495149 is about 443.9437964867.

The spelling of 87495149 in words is "eighty-seven million, four hundred ninety-five thousand, one hundred forty-nine".