140515231000 has 64 divisors (see below), whose sum is σ = 329094005760. Its totient is φ = 56156800000.

The previous prime is 140515230953. The next prime is 140515231007. The reversal of 140515231000 is 132515041.

It is a happy number.

It is a super-2 number, since 2×140515231000² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140515231007) 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, 1089960 + ... + 1212040.

It is an arithmetic number, because the mean of its divisors is an integer number (5142093840).

Almost surely, 2^140515231000 is an apocalyptic number.

140515231000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140515231000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164547002880).

140515231000 is an abundant number, since it is smaller than the sum of its proper divisors (188578774760).

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

140515231000 is a wasteful number, since it uses less digits than its factorization.

140515231000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123253 (or 123239 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

Adding to 140515231000 its reverse (132515041), we get a palindrome (140647746041).

The spelling of 140515231000 in words is "one hundred forty billion, five hundred fifteen million, two hundred thirty-one thousand".