154205023046 has 4 divisors (see below), whose sum is σ = 231307534572. Its totient is φ = 77102511522.

The previous prime is 154205023001. The next prime is 154205023067. The reversal of 154205023046 is 640320502451.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 640320502451 = 7 ⋅91474357493.

It is a super-2 number, since 2×154205023046² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38551255760 + ... + 38551255763.

It is an arithmetic number, because the mean of its divisors is an integer number (57826883643).

Almost surely, 2^154205023046 is an apocalyptic number.

154205023046 is a deficient number, since it is larger than the sum of its proper divisors (77102511526).

154205023046 is an equidigital number, since it uses as much as digits as its factorization.

154205023046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77102511525.

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 154205023046 its reverse (640320502451), we get a palindrome (794525525497).

The spelling of 154205023046 in words is "one hundred fifty-four billion, two hundred five million, twenty-three thousand, forty-six".