140215748 has 6 divisors (see below), whose sum is σ = 245377566. Its totient is φ = 70107872.

The previous prime is 140215741. The next prime is 140215753. The reversal of 140215748 is 847512041.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 89264704 + 50951044 = 9448^2 + 7138^2 .

It is not an unprimeable number, because it can be changed into a prime (140215741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17526965 + ... + 17526972.

It is an arithmetic number, because the mean of its divisors is an integer number (40896261).

Almost surely, 2^140215748 is an apocalyptic number.

It is an amenable number.

140215748 is a deficient number, since it is larger than the sum of its proper divisors (105161818).

140215748 is a wasteful number, since it uses less digits than its factorization.

140215748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35053941 (or 35053939 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 32.

The square root of 140215748 is about 11841.2730734495. The cubic root of 140215748 is about 519.5160042906.

Adding to 140215748 its reverse (847512041), we get a palindrome (987727789).

The spelling of 140215748 in words is "one hundred forty million, two hundred fifteen thousand, seven hundred forty-eight".