140138010 has 24 divisors (see below), whose sum is σ = 364359060. Its totient is φ = 37370112.

The previous prime is 140138003. The next prime is 140138077. The reversal of 140138010 is 10831041.

It can be written as a sum of positive squares in 2 ways, for example, as 129891609 + 10246401 = 11397^2 + 3201^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 778455 + ... + 778634.

Almost surely, 2^140138010 is an apocalyptic number.

140138010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140138010 is an abundant number, since it is smaller than the sum of its proper divisors (224221050).

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

140138010 is a wasteful number, since it uses less digits than its factorization.

140138010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1557102 (or 1557099 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 140138010 is about 11837.9901165696. The cubic root of 140138010 is about 519.4199770335.

Adding to 140138010 its reverse (10831041), we get a palindrome (150969051).

The spelling of 140138010 in words is "one hundred forty million, one hundred thirty-eight thousand, ten".