142157260 has 24 divisors (see below), whose sum is σ = 341177760. Its totient is φ = 48739584.

The previous prime is 142157251. The next prime is 142157263. The reversal of 142157260 is 62751241.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (142157263) 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 7 ways as a sum of consecutive naturals, for example, 507565 + ... + 507844.

It is an arithmetic number, because the mean of its divisors is an integer number (14215740).

Almost surely, 2^142157260 is an apocalyptic number.

142157260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142157260 is an abundant number, since it is smaller than the sum of its proper divisors (199020500).

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

142157260 is a wasteful number, since it uses less digits than its factorization.

142157260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1015425 (or 1015423 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 142157260 is about 11922.9719449473. The cubic root of 142157260 is about 521.9028655206.

The spelling of 142157260 in words is "one hundred forty-two million, one hundred fifty-seven thousand, two hundred sixty".