151420 has 24 divisors (see below), whose sum is σ = 325584. Its totient is φ = 59136.

The previous prime is 151397. The next prime is 151423. The reversal of 151420 is 24151.

151420 = T₁₆₉ + T₁₇₀ + ... + T₁₇₈.

It is a self number, because there is not a number n which added to its sum of digits gives 151420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151423) by changing a digit.

151420 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 (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1284 + ... + 1396.

It is an arithmetic number, because the mean of its divisors is an integer number (13566).

2¹⁵¹⁴²⁰ is an apocalyptic number.

151420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

151420 is an abundant number, since it is smaller than the sum of its proper divisors (174164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

151420 is a wasteful number, since it uses less digits than its factorization.

151420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189 (or 187 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 151420 is about 389.1272285513. The cubic root of 151420 is about 53.3000660590.

Adding to 151420 its reverse (24151), we get a palindrome (175571).

The spelling of 151420 in words is "one hundred fifty-one thousand, four hundred twenty".