154464521 has 4 divisors (see below), whose sum is σ = 154645200. Its totient is φ = 154283844.

The previous prime is 154464511. The next prime is 154464539. The reversal of 154464521 is 125464451.

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.

It is a cyclic number.

It is not a de Polignac number, because 154464521 - 2¹⁴ = 154448137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (154464511) 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, 89051 + ... + 90768.

It is an arithmetic number, because the mean of its divisors is an integer number (38661300).

Almost surely, 2^154464521 is an apocalyptic number.

It is an amenable number.

154464521 is a deficient number, since it is larger than the sum of its proper divisors (180679).

154464521 is an equidigital number, since it uses as much as digits as its factorization.

154464521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180678.

The product of its digits is 19200, while the sum is 32.

The square root of 154464521 is about 12428.3756380309. The cubic root of 154464521 is about 536.5492358230.

The spelling of 154464521 in words is "one hundred fifty-four million, four hundred sixty-four thousand, five hundred twenty-one".