154137554 has 8 divisors (see below), whose sum is σ = 233327820. Its totient is φ = 76361616.

The previous prime is 154137479. The next prime is 154137617. The reversal of 154137554 is 455731451.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 154132225 + 5329 = 12415^2 + 73^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 353309 + ... + 353744.

Almost surely, 2^154137554 is an apocalyptic number.

154137554 is a deficient number, since it is larger than the sum of its proper divisors (79190266).

154137554 is a wasteful number, since it uses less digits than its factorization.

154137554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707164.

The product of its digits is 42000, while the sum is 35.

The square root of 154137554 is about 12415.2146175570. The cubic root of 154137554 is about 536.1703832912.

The spelling of 154137554 in words is "one hundred fifty-four million, one hundred thirty-seven thousand, five hundred fifty-four".