151725 has 36 divisors (see below), whose sum is σ = 304544. Its totient is φ = 65280.

The previous prime is 151717. The next prime is 151729. The reversal of 151725 is 527151.

It is not a de Polignac number, because 151725 - 2³ = 151717 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151729) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 8917 + ... + 8933.

2¹⁵¹⁷²⁵ is an apocalyptic number.

151725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

151725 is an abundant number, since it is smaller than the sum of its proper divisors (152819).

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

151725 is a wasteful number, since it uses less digits than its factorization.

151725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54 (or 32 counting only the distinct ones).

The product of its digits is 350, while the sum is 21.

The square root of 151725 is about 389.5189340712. The cubic root of 151725 is about 53.3358288763.

Multiplying 151725 by its sum of digits (21), we get a square (3186225 = 1785²).

151725 divided by its sum of digits (21) gives a square (7225 = 85²).

Adding to 151725 its reverse (527151), we get a palindrome (678876).

The spelling of 151725 in words is "one hundred fifty-one thousand, seven hundred twenty-five".