142497120 has 96 divisors (see below), whose sum is σ = 450793728. Its totient is φ = 37836288.

The previous prime is 142497109. The next prime is 142497127. The reversal of 142497120 is 21794241.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142497127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 146877 + ... + 147843.

It is an arithmetic number, because the mean of its divisors is an integer number (4695768).

Almost surely, 2^142497120 is an apocalyptic number.

142497120 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 142497120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (225396864).

142497120 is an abundant number, since it is smaller than the sum of its proper divisors (308296608).

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

142497120 is a wasteful number, since it uses less digits than its factorization.

142497120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1292 (or 1284 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 142497120 is about 11937.2157557782. The cubic root of 142497120 is about 522.3184445869.

The spelling of 142497120 in words is "one hundred forty-two million, four hundred ninety-seven thousand, one hundred twenty".