154020077 has 4 divisors (see below), whose sum is σ = 154371360. Its totient is φ = 153668796.

The previous prime is 154020049. The next prime is 154020089. The reversal of 154020077 is 770020451.

154020077 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 770020451 = 20639 ⋅37309.

It is a cyclic number.

It is not a de Polignac number, because 154020077 - 2¹⁰ = 154019053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154020007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174983 + ... + 175860.

It is an arithmetic number, because the mean of its divisors is an integer number (38592840).

Almost surely, 2^154020077 is an apocalyptic number.

It is an amenable number.

154020077 is a deficient number, since it is larger than the sum of its proper divisors (351283).

154020077 is an equidigital number, since it uses as much as digits as its factorization.

154020077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351282.

The product of its (nonzero) digits is 1960, while the sum is 26.

The square root of 154020077 is about 12410.4825450101. The cubic root of 154020077 is about 536.0341333520.

The spelling of 154020077 in words is "one hundred fifty-four million, twenty thousand, seventy-seven".