151658 has 16 divisors (see below), whose sum is σ = 258720. Its totient is φ = 66096.

The previous prime is 151651. The next prime is 151667. The reversal of 151658 is 856151.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 151658.

It is not an unprimeable number, because it can be changed into a prime (151651) by changing a digit.

151658 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 341 + ... + 647.

It is an arithmetic number, because the mean of its divisors is an integer number (16170).

2¹⁵¹⁶⁵⁸ is an apocalyptic number.

151658 is a deficient number, since it is larger than the sum of its proper divisors (107062).

151658 is a wasteful number, since it uses less digits than its factorization.

151658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341.

The product of its digits is 1200, while the sum is 26.

The square root of 151658 is about 389.4329210532. The cubic root of 151658 is about 53.3279768926.

The spelling of 151658 in words is "one hundred fifty-one thousand, six hundred fifty-eight".