154230460621 has 4 divisors (see below), whose sum is σ = 154235082652. Its totient is φ = 154225838592.

The previous prime is 154230460541. The next prime is 154230460633. The reversal of 154230460621 is 126064032451.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 104015925225 + 50214535396 = 322515^2 + 224086^2 .

It is a cyclic number.

It is not a de Polignac number, because 154230460621 - 2²⁵ = 154196906189 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 (154230460921) 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, 2260596 + ... + 2327821.

It is an arithmetic number, because the mean of its divisors is an integer number (38558770663).

Almost surely, 2^154230460621 is an apocalyptic number.

It is an amenable number.

154230460621 is a deficient number, since it is larger than the sum of its proper divisors (4622031).

154230460621 is an equidigital number, since it uses as much as digits as its factorization.

154230460621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4622030.

The product of its (nonzero) digits is 34560, while the sum is 34.

The spelling of 154230460621 in words is "one hundred fifty-four billion, two hundred thirty million, four hundred sixty thousand, six hundred twenty-one".