140512213542 has 32 divisors (see below), whose sum is σ = 297583280352. Its totient is φ = 44078114304.

The previous prime is 140512213487. The next prime is 140512213549. The reversal of 140512213542 is 245312215041.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140512213549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1132068 + ... + 1250040.

It is an arithmetic number, because the mean of its divisors is an integer number (9299477511).

Almost surely, 2^140512213542 is an apocalyptic number.

140512213542 is an abundant number, since it is smaller than the sum of its proper divisors (157071066810).

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

140512213542 is a wasteful number, since it uses less digits than its factorization.

140512213542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129672.

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 140512213542 its reverse (245312215041), we get a palindrome (385824428583).

The spelling of 140512213542 in words is "one hundred forty billion, five hundred twelve million, two hundred thirteen thousand, five hundred forty-two".