140634190 has 16 divisors (see below), whose sum is σ = 264148128. Its totient is φ = 53807776.

The previous prime is 140634187. The next prime is 140634203. The reversal of 140634190 is 91436041.

It is a super-2 number, since 2×140634190² = 39555950793912200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 305497 + ... + 305956.

It is an arithmetic number, because the mean of its divisors is an integer number (16509258).

Almost surely, 2^140634190 is an apocalyptic number.

140634190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140634190 is a deficient number, since it is larger than the sum of its proper divisors (123513938).

140634190 is a wasteful number, since it uses less digits than its factorization.

140634190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611483.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 140634190 is about 11858.9287037236. The cubic root of 140634190 is about 520.0322834986.

The spelling of 140634190 in words is "one hundred forty million, six hundred thirty-four thousand, one hundred ninety".