87154101 has 12 divisors (see below), whose sum is σ = 128265228. Its totient is φ = 57006144.

The previous prime is 87154099. The next prime is 87154103. The reversal of 87154101 is 10145178.

It is an interprime number because it is at equal distance from previous prime (87154099) and next prime (87154103).

It can be written as a sum of positive squares in 2 ways, for example, as 28998225 + 58155876 = 5385^2 + 7626^2 .

It is not a de Polignac number, because 87154101 - 2¹ = 87154099 is a prime.

It is a super-2 number, since 2×87154101² = 15191674642236402, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87154103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 90880 + ... + 91833.

It is an arithmetic number, because the mean of its divisors is an integer number (10688769).

Almost surely, 2^87154101 is an apocalyptic number.

It is an amenable number.

87154101 is a deficient number, since it is larger than the sum of its proper divisors (41111127).

87154101 is a wasteful number, since it uses less digits than its factorization.

87154101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182772 (or 182769 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 27.

The square root of 87154101 is about 9335.6360790254. The cubic root of 87154101 is about 443.3662281105.

Adding to 87154101 its reverse (10145178), we get a palindrome (97299279).

The spelling of 87154101 in words is "eighty-seven million, one hundred fifty-four thousand, one hundred one".