151149821 has 8 divisors (see below), whose sum is σ = 154998144. Its totient is φ = 147309280.

The previous prime is 151149809. The next prime is 151149829. The reversal of 151149821 is 128941151.

151149821 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 151149821 - 2¹⁰ = 151148797 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 (151149829) 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, 72236 + ... + 74298.

It is an arithmetic number, because the mean of its divisors is an integer number (19374768).

Almost surely, 2^151149821 is an apocalyptic number.

It is an amenable number.

151149821 is a deficient number, since it is larger than the sum of its proper divisors (3848323).

151149821 is a wasteful number, since it uses less digits than its factorization.

151149821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3891.

The product of its digits is 2880, while the sum is 32.

The square root of 151149821 is about 12294.3003460953. The cubic root of 151149821 is about 532.6834604840.

The spelling of 151149821 in words is "one hundred fifty-one million, one hundred forty-nine thousand, eight hundred twenty-one".