140974451 has 2 divisors, whose sum is σ = 140974452. Its totient is φ = 140974450.

The previous prime is 140974439. The next prime is 140974459. The reversal of 140974451 is 154479041.

140974451 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (154479041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140974451 - 2²⁶ = 73865587 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (140974459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70487225 + 70487226.

It is an arithmetic number, because the mean of its divisors is an integer number (70487226).

Almost surely, 2^140974451 is an apocalyptic number.

140974451 is a deficient number, since it is larger than the sum of its proper divisors (1).

140974451 is an equidigital number, since it uses as much as digits as its factorization.

140974451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 140974451 is about 11873.2662313283. The cubic root of 140974451 is about 520.4513475263.

The spelling of 140974451 in words is "one hundred forty million, nine hundred seventy-four thousand, four hundred fifty-one".