140102331 has 4 divisors (see below), whose sum is σ = 186803112. Its totient is φ = 93401552.

The previous prime is 140102329. The next prime is 140102353. The reversal of 140102331 is 133201041.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 140102331 - 2¹ = 140102329 is a prime.

It is a super-2 number, since 2×140102331² = 39257326303267122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 140102331.

It is not an unprimeable number, because it can be changed into a prime (140102311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23350386 + ... + 23350391.

It is an arithmetic number, because the mean of its divisors is an integer number (46700778).

Almost surely, 2^140102331 is an apocalyptic number.

140102331 is a deficient number, since it is larger than the sum of its proper divisors (46700781).

140102331 is an equidigital number, since it uses as much as digits as its factorization.

140102331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46700780.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 140102331 is about 11836.4830502983. The cubic root of 140102331 is about 519.3758920196.

Adding to 140102331 its reverse (133201041), we get a palindrome (273303372).

The spelling of 140102331 in words is "one hundred forty million, one hundred two thousand, three hundred thirty-one".