154287142 has 4 divisors (see below), whose sum is σ = 231430716. Its totient is φ = 77143570.

The previous prime is 154287137. The next prime is 154287143. The reversal of 154287142 is 241782451.

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

It is a junction number, because it is equal to n+sod(n) for n = 154287098 and 154287107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154287143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38571784 + ... + 38571787.

It is an arithmetic number, because the mean of its divisors is an integer number (57857679).

Almost surely, 2^154287142 is an apocalyptic number.

154287142 is a deficient number, since it is larger than the sum of its proper divisors (77143574).

154287142 is an equidigital number, since it uses as much as digits as its factorization.

154287142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77143573.

The product of its digits is 17920, while the sum is 34.

The square root of 154287142 is about 12421.2375389894. The cubic root of 154287142 is about 536.3437754365.

It can be divided in two parts, 154 and 287142, that added together give a square (287296 = 536²).

The spelling of 154287142 in words is "one hundred fifty-four million, two hundred eighty-seven thousand, one hundred forty-two".