151344621 has 12 divisors (see below), whose sum is σ = 218750272. Its totient is φ = 100831176.

The previous prime is 151344619. The next prime is 151344631. The reversal of 151344621 is 126443151.

It is a happy number.

151344621 is a `hidden beast` number, since 1 + 5 + 1 + 34 + 4 + 621 = 666.

151344621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 151344621 - 2¹ = 151344619 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 (151344601) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12300 + ... + 21306.

Almost surely, 2^151344621 is an apocalyptic number.

It is an amenable number.

151344621 is a deficient number, since it is larger than the sum of its proper divisors (67405651).

151344621 is a wasteful number, since it uses less digits than its factorization.

151344621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10880 (or 10877 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 151344621 is about 12302.2201654823. The cubic root of 151344621 is about 532.9122008414.

Adding to 151344621 its reverse (126443151), we get a palindrome (277787772).

The spelling of 151344621 in words is "one hundred fifty-one million, three hundred forty-four thousand, six hundred twenty-one".