140921734 has 8 divisors (see below), whose sum is σ = 211436640. Its totient is φ = 70442856.

The previous prime is 140921719. The next prime is 140921741. The reversal of 140921734 is 437129041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×140921734² = 39717870227133512, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 140921696 and 140921705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5352 + ... + 17620.

It is an arithmetic number, because the mean of its divisors is an integer number (26429580).

Almost surely, 2^140921734 is an apocalyptic number.

140921734 is a deficient number, since it is larger than the sum of its proper divisors (70514906).

140921734 is a wasteful number, since it uses less digits than its factorization.

140921734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18014.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 140921734 is about 11871.0460364704. The cubic root of 140921734 is about 520.3864656649.

The spelling of 140921734 in words is "one hundred forty million, nine hundred twenty-one thousand, seven hundred thirty-four".