140197534 has 8 divisors (see below), whose sum is σ = 210475008. Its totient is φ = 70039200.

The previous prime is 140197493. The next prime is 140197537. The reversal of 140197534 is 435791041.

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

It is a self number, because there is not a number n which added to its sum of digits gives 140197534.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140197537) 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, 26782 + ... + 31585.

It is an arithmetic number, because the mean of its divisors is an integer number (26309376).

Almost surely, 2^140197534 is an apocalyptic number.

140197534 is a deficient number, since it is larger than the sum of its proper divisors (70277474).

140197534 is a wasteful number, since it uses less digits than its factorization.

140197534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59570.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 140197534 is about 11840.5039588693. The cubic root of 140197534 is about 519.4935083052.

The spelling of 140197534 in words is "one hundred forty million, one hundred ninety-seven thousand, five hundred thirty-four".