151546 has 4 divisors (see below), whose sum is σ = 227322. Its totient is φ = 75772.

The previous prime is 151537. The next prime is 151549. The reversal of 151546 is 645151.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 645151 = 13 ⋅49627.

It can be written as a sum of positive squares in only one way, i.e., 151321 + 225 = 389^2 + 15^2 .

It is not an unprimeable number, because it can be changed into a prime (151549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37885 + ... + 37888.

2¹⁵¹⁵⁴⁶ is an apocalyptic number.

151546 is a deficient number, since it is larger than the sum of its proper divisors (75776).

151546 is an equidigital number, since it uses as much as digits as its factorization.

151546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75775.

The product of its digits is 600, while the sum is 22.

The square root of 151546 is about 389.2890956603. The cubic root of 151546 is about 53.3148460229.

Adding to 151546 its reverse (645151), we get a palindrome (796697).

The spelling of 151546 in words is "one hundred fifty-one thousand, five hundred forty-six".