151740 has 48 divisors (see below), whose sum is σ = 473760. Its totient is φ = 40320.

The previous prime is 151733. The next prime is 151769. The reversal of 151740 is 47151.

151740 = 41² + 42² + ... + 80².

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a nontrivial repunit in base 53.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 400 + ... + 680.

It is an arithmetic number, because the mean of its divisors is an integer number (9870).

2¹⁵¹⁷⁴⁰ is an apocalyptic number.

151740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 151740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (236880).

151740 is an abundant number, since it is smaller than the sum of its proper divisors (322020).

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

151740 is a wasteful number, since it uses less digits than its factorization.

151740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299 (or 291 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 18.

The square root of 151740 is about 389.5381881151. The cubic root of 151740 is about 53.3375864664.

Adding to 151740 its reverse (47151), we get a palindrome (198891).

The spelling of 151740 in words is "one hundred fifty-one thousand, seven hundred forty".