154723435801 has 9 divisors (see below), whose sum is σ = 170072664853. Its totient is φ = 140653735420.

The previous prime is 154723435771. The next prime is 154723435837. The reversal of 154723435801 is 108534327451.

It is a happy number.

The square root of 154723435801 is 393349.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 154723435801 - 2¹³ = 154723427609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (154723435891) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4308960 + ... + 4344718.

Almost surely, 2^154723435801 is an apocalyptic number.

154723435801 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

154723435801 is the 393349-th square number.

154723435801 is the 196675-th centered octagonal number.

It is an amenable number.

154723435801 is a deficient number, since it is larger than the sum of its proper divisors (15349229052).

154723435801 is an frugal number, since it uses more digits than its factorization.

154723435801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71540 (or 35770 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 43.

The spelling of 154723435801 in words is "one hundred fifty-four billion, seven hundred twenty-three million, four hundred thirty-five thousand, eight hundred one".