140634254 has 4 divisors (see below), whose sum is σ = 210951384. Its totient is φ = 70317126.

The previous prime is 140634239. The next prime is 140634269. The reversal of 140634254 is 452436041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 452436041 = 31 ⋅14594711.

It is an interprime number because it is at equal distance from previous prime (140634239) and next prime (140634269).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35158562 + ... + 35158565.

It is an arithmetic number, because the mean of its divisors is an integer number (52737846).

Almost surely, 2^140634254 is an apocalyptic number.

140634254 is a deficient number, since it is larger than the sum of its proper divisors (70317130).

140634254 is an equidigital number, since it uses as much as digits as its factorization.

140634254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70317129.

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 140634254 is about 11858.9314021121. The cubic root of 140634254 is about 520.0323623843.

The spelling of 140634254 in words is "one hundred forty million, six hundred thirty-four thousand, two hundred fifty-four".