141997720 has 32 divisors (see below), whose sum is σ = 323092800. Its totient is φ = 56159488.

The previous prime is 141997711. The next prime is 141997727. The reversal of 141997720 is 27799141.

141997720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (141997727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16384 + ... + 23503.

It is an arithmetic number, because the mean of its divisors is an integer number (10096650).

Almost surely, 2^141997720 is an apocalyptic number.

141997720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

141997720 is an abundant number, since it is smaller than the sum of its proper divisors (181095080).

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

141997720 is a wasteful number, since it uses less digits than its factorization.

141997720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39987 (or 39983 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 40.

The square root of 141997720 is about 11916.2796207541. The cubic root of 141997720 is about 521.7075523601.

The spelling of 141997720 in words is "one hundred forty-one million, nine hundred ninety-seven thousand, seven hundred twenty".