140215402 has 16 divisors (see below), whose sum is σ = 221709600. Its totient is φ = 66322800.

The previous prime is 140215399. The next prime is 140215409. The reversal of 140215402 is 204512041.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 140215402.

It is not an unprimeable number, because it can be changed into a prime (140215409) 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, 29277 + ... + 33727.

It is an arithmetic number, because the mean of its divisors is an integer number (13856850).

Almost surely, 2^140215402 is an apocalyptic number.

140215402 is a deficient number, since it is larger than the sum of its proper divisors (81494198).

140215402 is a wasteful number, since it uses less digits than its factorization.

140215402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5301.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 140215402 is about 11841.2584635249. The cubic root of 140215402 is about 519.5155769665.

Adding to 140215402 its reverse (204512041), we get a palindrome (344727443).

The spelling of 140215402 in words is "one hundred forty million, two hundred fifteen thousand, four hundred two".