142657550 has 48 divisors (see below), whose sum is σ = 304935840. Its totient is φ = 48639360.

The previous prime is 142657547. The next prime is 142657553. The reversal of 142657550 is 55756241.

It is an interprime number because it is at equal distance from previous prime (142657547) and next prime (142657553).

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 142657550.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142657553) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 67916 + ... + 69984.

It is an arithmetic number, because the mean of its divisors is an integer number (6352830).

Almost surely, 2^142657550 is an apocalyptic number.

142657550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142657550 is an abundant number, since it is smaller than the sum of its proper divisors (162278290).

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

142657550 is a wasteful number, since it uses less digits than its factorization.

142657550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2285 (or 2280 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 35.

The square root of 142657550 is about 11943.9336066474. The cubic root of 142657550 is about 522.5143880107.

The spelling of 142657550 in words is "one hundred forty-two million, six hundred fifty-seven thousand, five hundred fifty".