151628391 has 12 divisors (see below), whose sum is σ = 219713832. Its totient is φ = 100764816.

The previous prime is 151628377. The next prime is 151628419. The reversal of 151628391 is 193826151.

It is not a de Polignac number, because 151628391 - 2⁵ = 151628359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151628591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23721 + ... + 29426.

It is an arithmetic number, because the mean of its divisors is an integer number (18309486).

Almost surely, 2^151628391 is an apocalyptic number.

151628391 is a deficient number, since it is larger than the sum of its proper divisors (68085441).

151628391 is a wasteful number, since it uses less digits than its factorization.

151628391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53470 (or 53467 counting only the distinct ones).

The product of its digits is 12960, while the sum is 36.

The square root of 151628391 is about 12313.7480484213. The cubic root of 151628391 is about 533.2450616497.

The spelling of 151628391 in words is "one hundred fifty-one million, six hundred twenty-eight thousand, three hundred ninety-one".