87381254 has 4 divisors (see below), whose sum is σ = 131071884. Its totient is φ = 43690626.

The previous prime is 87381253. The next prime is 87381293. The reversal of 87381254 is 45218378.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45218378 = 2 ⋅22609189.

It is a super-2 number, since 2×87381254² = 15270967101225032, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87381251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21845312 + ... + 21845315.

It is an arithmetic number, because the mean of its divisors is an integer number (32767971).

Almost surely, 2^87381254 is an apocalyptic number.

87381254 is a deficient number, since it is larger than the sum of its proper divisors (43690630).

87381254 is a wasteful number, since it uses less digits than its factorization.

87381254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43690629.

The product of its digits is 53760, while the sum is 38.

The square root of 87381254 is about 9347.7940713304. The cubic root of 87381254 is about 443.7510812908.

The spelling of 87381254 in words is "eighty-seven million, three hundred eighty-one thousand, two hundred fifty-four".