154027531242 has 24 divisors (see below), whose sum is σ = 359397573444. Its totient is φ = 47393086464.

The previous prime is 154027531183. The next prime is 154027531243. The reversal of 154027531242 is 242135720451.

154027531242 is a `hidden beast` number, since 1 + 5 + 402 + 7 + 5 + 3 + 1 + 242 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 139284957681 + 14742573561 = 373209^2 + 121419^2 .

It is a junction number, because it is equal to n+sod(n) for n = 154027531197 and 154027531206.

It is not an unprimeable number, because it can be changed into a prime (154027531243) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 329118423 + ... + 329118890.

Almost surely, 2^154027531242 is an apocalyptic number.

154027531242 is an abundant number, since it is smaller than the sum of its proper divisors (205370042202).

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

154027531242 is a wasteful number, since it uses less digits than its factorization.

154027531242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658237334 (or 658237331 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

The spelling of 154027531242 in words is "one hundred fifty-four billion, twenty-seven million, five hundred thirty-one thousand, two hundred forty-two".