154657090069 has 4 divisors (see below), whose sum is σ = 154893931596. Its totient is φ = 154420248544.

The previous prime is 154657090067. The next prime is 154657090073. The reversal of 154657090069 is 960090756451.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 960090756451 = 37 ⋅25948398823.

It can be written as a sum of positive squares in 2 ways, for example, as 10917533169 + 143739556900 = 104487^2 + 379130^2 .

It is a cyclic number.

It is not a de Polignac number, because 154657090069 - 2¹ = 154657090067 is a prime.

It is a super-2 number, since 2×154657090069² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 154657089998 and 154657090025.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154657090067) 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, 118419784 + ... + 118421089.

It is an arithmetic number, because the mean of its divisors is an integer number (38723482899).

Almost surely, 2^154657090069 is an apocalyptic number.

It is an amenable number.

154657090069 is a deficient number, since it is larger than the sum of its proper divisors (236841527).

154657090069 is an equidigital number, since it uses as much as digits as its factorization.

154657090069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236841526.

The product of its (nonzero) digits is 2041200, while the sum is 52.

The spelling of 154657090069 in words is "one hundred fifty-four billion, six hundred fifty-seven million, ninety thousand, sixty-nine".