154542031 has 6 divisors (see below), whose sum is σ = 179773440. Its totient is φ = 132464556.

The previous prime is 154542013. The next prime is 154542103. The reversal of 154542031 is 130245451.

It is a happy number.

It is not a de Polignac number, because 154542031 - 2⁷ = 154541903 is a prime.

It is a super-2 number, since 2×154542031² = 47766478691209922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 154541987 and 154542005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154542331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1576911 + ... + 1577008.

It is an arithmetic number, because the mean of its divisors is an integer number (29962240).

Almost surely, 2^154542031 is an apocalyptic number.

154542031 is a deficient number, since it is larger than the sum of its proper divisors (25231409).

154542031 is an equidigital number, since it uses as much as digits as its factorization.

154542031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3153933 (or 3153926 counting only the distinct ones).

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

The square root of 154542031 is about 12431.4935144575. The cubic root of 154542031 is about 536.6389672744.

Adding to 154542031 its reverse (130245451), we get a palindrome (284787482).

It can be divided in two parts, 1545420 and 31, that added together give a palindrome (1545451).

The spelling of 154542031 in words is "one hundred fifty-four million, five hundred forty-two thousand, thirty-one".