154404132121 has 8 divisors (see below), whose sum is σ = 156169352160. Its totient is φ = 152639586528.

The previous prime is 154404132109. The next prime is 154404132131. The reversal of 154404132121 is 121231404451.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 154404132121 - 2⁵ = 154404132089 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 154404132121.

It is not an unprimeable number, because it can be changed into a prime (154404132101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 299250 + ... + 631156.

It is an arithmetic number, because the mean of its divisors is an integer number (19521169020).

Almost surely, 2^154404132121 is an apocalyptic number.

It is an amenable number.

154404132121 is a deficient number, since it is larger than the sum of its proper divisors (1765220039).

154404132121 is an equidigital number, since it uses as much as digits as its factorization.

154404132121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337223.

The product of its (nonzero) digits is 3840, while the sum is 28.

Adding to 154404132121 its reverse (121231404451), we get a palindrome (275635536572).

The spelling of 154404132121 in words is "one hundred fifty-four billion, four hundred four million, one hundred thirty-two thousand, one hundred twenty-one".