154532542 has 4 divisors (see below), whose sum is σ = 231798816. Its totient is φ = 77266270.

The previous prime is 154532537. The next prime is 154532549. The reversal of 154532542 is 245235451.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154532549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38633134 + ... + 38633137.

It is an arithmetic number, because the mean of its divisors is an integer number (57949704).

Almost surely, 2^154532542 is an apocalyptic number.

154532542 is a deficient number, since it is larger than the sum of its proper divisors (77266274).

154532542 is an equidigital number, since it uses as much as digits as its factorization.

154532542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77266273.

The product of its digits is 24000, while the sum is 31.

The square root of 154532542 is about 12431.1118569499. Note that the first 3 decimals coincide. The cubic root of 154532542 is about 536.6279837007.

Adding to 154532542 its reverse (245235451), we get a palindrome (399767993).

The spelling of 154532542 in words is "one hundred fifty-four million, five hundred thirty-two thousand, five hundred forty-two".