421345154 has 8 divisors (see below), whose sum is σ = 632527500. Its totient is φ = 210502656.

The previous prime is 421345103. The next prime is 421345189. The reversal of 421345154 is 451543124.

It can be written as a sum of positive squares in 2 ways, for example, as 399000625 + 22344529 = 19975^2 + 4727^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81839 + ... + 86834.

Almost surely, 2^421345154 is an apocalyptic number.

421345154 is a deficient number, since it is larger than the sum of its proper divisors (211182346).

421345154 is a wasteful number, since it uses less digits than its factorization.

421345154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169924.

The product of its digits is 9600, while the sum is 29.

The square root of 421345154 is about 20526.6936938222. The cubic root of 421345154 is about 749.6858856464.

Adding to 421345154 its reverse (451543124), we get a palindrome (872888278).

The spelling of 421345154 in words is "four hundred twenty-one million, three hundred forty-five thousand, one hundred fifty-four".