142691550 has 24 divisors (see below), whose sum is σ = 353875416. Its totient is φ = 38051040.

The previous prime is 142691537. The next prime is 142691569. The reversal of 142691550 is 55196241.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 475489 + ... + 475788.

It is an arithmetic number, because the mean of its divisors is an integer number (14744809).

Almost surely, 2^142691550 is an apocalyptic number.

142691550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142691550 is an abundant number, since it is smaller than the sum of its proper divisors (211183866).

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

142691550 is a wasteful number, since it uses less digits than its factorization.

142691550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 951292 (or 951287 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 33.

The square root of 142691550 is about 11945.3568385377. The cubic root of 142691550 is about 522.5558955182. Note that the first 3 decimals are identical.

The spelling of 142691550 in words is "one hundred forty-two million, six hundred ninety-one thousand, five hundred fifty".