141781725 has 48 divisors (see below), whose sum is σ = 269476800. Its totient is φ = 72999360.

The previous prime is 141781709. The next prime is 141781727. The reversal of 141781725 is 527187141.

It is not a de Polignac number, because 141781725 - 2⁴ = 141781709 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 141781725.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (141781727) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15954 + ... + 23196.

It is an arithmetic number, because the mean of its divisors is an integer number (5614100).

Almost surely, 2^141781725 is an apocalyptic number.

141781725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

141781725 is a deficient number, since it is larger than the sum of its proper divisors (127695075).

141781725 is a wasteful number, since it uses less digits than its factorization.

141781725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7291 (or 7280 counting only the distinct ones).

The product of its digits is 15680, while the sum is 36.

The square root of 141781725 is about 11907.2131500196. The cubic root of 141781725 is about 521.4428922248.

The spelling of 141781725 in words is "one hundred forty-one million, seven hundred eighty-one thousand, seven hundred twenty-five".