42531154 has 4 divisors (see below), whose sum is σ = 63796734. Its totient is φ = 21265576.

The previous prime is 42531133. The next prime is 42531169. The reversal of 42531154 is 45113524.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 37491129 + 5040025 = 6123^2 + 2245^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10632787 + ... + 10632790.

Almost surely, 2^42531154 is an apocalyptic number.

42531154 is a deficient number, since it is larger than the sum of its proper divisors (21265580).

42531154 is a wasteful number, since it uses less digits than its factorization.

42531154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21265579.

The product of its digits is 2400, while the sum is 25.

The square root of 42531154 is about 6521.5913702102. The cubic root of 42531154 is about 349.0618522406.

Adding to 42531154 its reverse (45113524), we get a palindrome (87644678).

The spelling of 42531154 in words is "forty-two million, five hundred thirty-one thousand, one hundred fifty-four".