154244142 has 32 divisors (see below), whose sum is σ = 369132960. Its totient is φ = 47459520.

The previous prime is 154244137. The next prime is 154244159. The reversal of 154244142 is 241442451.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109159 + ... + 110562.

It is an arithmetic number, because the mean of its divisors is an integer number (11535405).

Almost surely, 2^154244142 is an apocalyptic number.

154244142 is an abundant number, since it is smaller than the sum of its proper divisors (214888818).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

154244142 is a wasteful number, since it uses less digits than its factorization.

154244142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219745 (or 219739 counting only the distinct ones).

The product of its digits is 5120, while the sum is 27.

The square root of 154244142 is about 12419.5065119352. The cubic root of 154244142 is about 536.2939442691.

Adding to 154244142 its reverse (241442451), we get a palindrome (395686593).

The spelling of 154244142 in words is "one hundred fifty-four million, two hundred forty-four thousand, one hundred forty-two".