154148042 has 4 divisors (see below), whose sum is σ = 231222066. Its totient is φ = 77074020.

The previous prime is 154148011. The next prime is 154148051. The reversal of 154148042 is 240841451.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 240841451 = 3821 ⋅63031.

It can be written as a sum of positive squares in only one way, i.e., 106275481 + 47872561 = 10309^2 + 6919^2 .

It is a junction number, because it is equal to n+sod(n) for n = 154147996 and 154148014.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38537009 + ... + 38537012.

Almost surely, 2^154148042 is an apocalyptic number.

154148042 is a deficient number, since it is larger than the sum of its proper divisors (77074024).

154148042 is an equidigital number, since it uses as much as digits as its factorization.

154148042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77074023.

The product of its (nonzero) digits is 5120, while the sum is 29.

The square root of 154148042 is about 12415.6369953378. The cubic root of 154148042 is about 536.1825439172.

Adding to 154148042 its reverse (240841451), we get a palindrome (394989493).

The spelling of 154148042 in words is "one hundred fifty-four million, one hundred forty-eight thousand, forty-two".