142390935291 has 8 divisors (see below), whose sum is σ = 207114087744. Its totient is φ = 86297536520.

The previous prime is 142390935263. The next prime is 142390935293. The reversal of 142390935291 is 192539093241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 142390935291 - 2⁵ = 142390935259 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 142390935291.

It is not an unprimeable number, because it can be changed into a prime (142390935293) 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, 2157438381 + ... + 2157438446.

It is an arithmetic number, because the mean of its divisors is an integer number (25889260968).

Almost surely, 2^142390935291 is an apocalyptic number.

142390935291 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

142390935291 is a deficient number, since it is larger than the sum of its proper divisors (64723152453).

142390935291 is a wasteful number, since it uses less digits than its factorization.

142390935291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4314876841.

The product of its (nonzero) digits is 524880, while the sum is 48.

The spelling of 142390935291 in words is "one hundred forty-two billion, three hundred ninety million, nine hundred thirty-five thousand, two hundred ninety-one".